Fixes #3897

"Remember me" is only available when logging in with password. I see
this as an "advanced" feature. The passwordless login flow is easy so
not a big hassle to do it once a day.

Organisation that wants to can set `SESSION_COOKIE_AGE` to a custom
value, e.g. set it to two weeks to reagin the old behaviour.

To disable "Remember me" set `SESSION_COOKIE_AGE` to the same value as
`SESSION_COOKIE_AGE_LONG`

This PR also:

* removes unused code is_public_site
* removes unused code register_extra_text
* removes all use of link-button* classes. Buttons are now only handled
by the button class.
* add a tiny border radius to all buttons (this is something we
implement on all elements in Hypha)

Documentation overhaul - Fixing formatting issues, autodoc implementation, and added variables for versions. (#3734)

Closes #3639. 

This is a bit of an overhaul of the docs to make them more
easy to utilize. This changes include:
- Removal of overhanging public aspects of the documentation
- Reformatting of terminal commands to allow for easy copy & pasting
- Updating points of contact
- Screenshot Updates
- Automated code API documentation. [Google's docstring
style](https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings)
should be used.
- Added variables for things like software versions & packages.
- Unless python & node version are manually specified, when docs are
built these will be pulled from
[`.nvmrc`](https://github.com/HyphaApp/hypha/blob/main/.nvmrc) &
[`.python-version`](https://github.com/HyphaApp/hypha/blob/main/.python-version)
- Consolidated the production and development guides into one location
(both under `Setup` rather than one under `Getting Started` and one
under `Setup`), and updated them to be similar to one another.
- Added different steps for getting Hypha development deployed under
multiple OSs

## Description

Closes #3545.

This creates the option to require a user to preview their form before
submitting it. The requirement is set on a per fund/lab basis, and is a
~required checkbox when the lab/fund is configured in Wagtail admin~
global Django configuration option. The preview first saves the
application as a draft, then presents the user with a preview of their
application. Upon viewing, the user can either edit or submit as seen in
the flow diagram below.

This is part of public site removal effort

Configured setting for default visibility of review. It can be set as
**private** or **reviewers**.

- Private: Visible only to staff.
- Reviewers: Visible to other reviewers and staff.

**Setting to consider:**

- ```REVIEW_VISIBILITY_DEFAULT ```

Closes #3417

---------

Co-authored-by: Fredrik Jonsson <frjo@xdeb.org>

Fixes #ISSUEID

This PR is depended on #3521 

- [x] Passwordless login
- [x] Passwordless signup 
- [x] Allow user to set a password after going to profile.
- [x] Allow user to change their email even if they don't have an email
set.
- [x] Allow user to add their name in the application form if name is
not present in the user account.
- [x] Don't display "Dashboard" link if the user does't have permission
to access to it.
- [x] Allow to use to setup 2FA without account password.
- [x] Display user content on the login screen, if configured (it is an
existing feature)
- [x] If 2FA is enforced, allow the user to submit the application
without setting up 2FA
- [x] Add email re-verification option to elevate, sudo mode, apart from
password
- [x] Update landing page after application submission, on success it
redirects now.
- [x] Update ENABLE_PUBLIC_SIGNUP and FORCE_LOGIN_FOR_APPLICATION to
true by default

# Login/Signup Flow


![image](https://github.com/HyphaApp/hypha/assets/236356/91c22cb1-bd1f-4665-98e2-0350829a5807)


## Updated Login Page with Registration Enabled

![Screenshot 2023-09-13 at 07 53
06@2x](https://github.com/HyphaApp/hypha/assets/236356/424fa2f6-a519-44e3-a9ec-449815dd39b2)


## After providing the email ID

The messaging is kept neutral to hide if the user is already registered
or not. The email will contain more detail, if the account exist or not.

![Screenshot 2023-09-13 at 07 57
27@2x](https://github.com/HyphaApp/hypha/assets/236356/7577447b-edf2-496e-94ca-3c98a8f2f075)

Login email copy
![Screenshot 2023-09-13 at 08 08
36@2x](https://github.com/HyphaApp/hypha/assets/236356/ab2d3e90-da2e-40ec-9f7e-bbb8d9e7235f)

## Signup

New Account Email copy
![Screenshot 2023-09-21 at 07 08
52@2x](https://github.com/HyphaApp/hypha/assets/236356/cb14350b-1cfb-4869-b863-ebbb95701089)

### Profile Page just after signup 
The user after clicking on the signup link in the email is redirect to
homepage. No dashboard is available as the user doesn't have applicant
role. If they click on the "profile" button they see this page with open
to update profile and setup a password and enable 2FA.

If the user decide to change the email, password is not asked if not
password is set, instead an email is sent to authorize the email change.

![Screenshot 2023-09-22 at 08 50
21@2x](https://github.com/HyphaApp/hypha/assets/236356/7ed0cb97-a7ca-49fe-aef5-de8f3890db1e)


## Updated "Sudo" mode page

### For account with password

![Screenshot 2023-10-31 at 7  49
38@2x](https://github.com/HyphaApp/hypha/assets/236356/fe27ad75-7e4b-4226-89c1-ddd7a5548944)

After clicking on the "Send a confirmation code to your email" link

![Screenshot 2023-10-31 at 8  03
28@2x](https://github.com/HyphaApp/hypha/assets/236356/bf7a4098-fd0f-4d55-9850-0862da69d808)


![Screenshot 2023-10-31 at 7  51
03@2x](https://github.com/HyphaApp/hypha/assets/236356/3768e87f-d105-4d54-9cd6-2e2b8a81fa2f)


### For account without password

![Screenshot 2023-10-31 at 7  53
44@2x](https://github.com/HyphaApp/hypha/assets/236356/8c84181a-43ce-4afe-a5be-758e3f0e55f8)


## Updated disable 2FA page

It requires "Sudo" mode, instead of password now. 

![Screenshot 2023-10-31 at 7  48
01@2x](https://github.com/HyphaApp/hypha/assets/236356/2b5c8bd1-27ea-42cd-9c84-608bb351631c)

Co-authored-by: Saurabh Kumar <theskumar@users.noreply.github.com>
Co-authored-by: Sandeep Chauhan <sandeepsajan0@gmail.com>

Fixes #3560

Adds the settings:

```
# Should staff be able to export submissions.
SUBMISSIONS_EXPORT_ACCESS_STAFF = env.bool('SUBMISSIONS_EXPORT_ACCESS_STAFF', True)

# Should staff admins be able to export submissions.
SUBMISSIONS_EXPORT_ACCESS_STAFF_ADMIN = env.bool('SUBMISSIONS_EXPORT_ACCESS_STAFF_ADMIN', True)

```

Fixes #3529

Fixes #3290

Adds an organization name column to the submission table. To effect that
change, a new unique block needed to be added. I did test that the
column will not show up when added to
`SUBSMISSION_TABLE_EXCLUDED_FIELDS`

---------

Co-authored-by: Ghulam Murtaza <gmurtaza@opentechstrategies.com>
Co-authored-by: Frank Duncan <frank@kank.net>
Co-authored-by: Fredrik Jonsson <frjo@xdeb.org>

Fixes #3452 

Current project views are that the docker setup isn't the best way to
roll out to prod. Adding that to the docs gives readers a better idea of
what to expect as an outcome from this section.

Fixes #3064

---------

Co-authored-by: Ghulam Murtaza <gmurtaza@opentechstrategies.com>
Co-authored-by: Frank Duncan <frank@kank.net>

- Add a guide on how to enable and setup sentry
- Upgrades sentry-sdk to 1.16.0
- Add optional performance monitoring
- Add Browser Javascript Tracking & Tracing

Fixes #3242

Fixes: #3250

- Add page last edited info on each page
- Update header - site title, repo name & icon
- Disable custom fonts, use system-fonts
- Add copyright info in footer
- Update navigation structure and behaviour
- Add source code view and edit buttons
- Refractor documentation