Make the option "Leave blank to use the default Category label" working on view

Correcting the label and help text on category block/field.

Update to Wagtail 2.16.1.

Remove old Vagrant files. Not updated in years since no one is using …

Bump url-parse from 1.5.7 to 1.5.10

Update to Django 3.2.12

Fix column orders

Add tests for invoice finance flow

Upgrade to mistune2.0.2

Bumps [url-parse](https://github.com/unshiftio/url-parse) from 1.5.7 to 1.5.10.
- [Release notes](https://github.com/unshiftio/url-parse/releases)
- [Commits](https://github.com/unshiftio/url-parse/compare/1.5.7...1.5.10

)

---
updated-dependencies:
- dependency-name: url-parse
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Django tables have some weird rules around field order, which is why one
might specify a sequence explicitly.  Unfortunately the way sequence was
being defined for the summary submissions table (the one shown on the
dashboard) caused the order to fall back to wahtever the default field
order was.

That order is overrode by the submissions table (the one shown in
submissions).

In order to have the two tables match order we need to define the
sequences in the same way.

Issue #2734

Replace reviewer toggle label

The toggle button for showing "all" reviewers referenced "advisors"
which is a term that isn't used any longer.  This corrects the default
to reference reviewers.

Issue #2736

Update AppConfig names, Add output fields in Case, sum and etc, and fix distinct issue before delete

Fix review sidebar item widths

The previous grid layout supported four columns but certain evaluation
strings would generate overlaps.  This modifies the CSS to ensure each
column has enough space to render the currently known possible values.

I did spend some time trying to find a solution that would dynamically
fill the full grid width even in cases where there are only three
columns, but couldn't find a pure-CSS solution in my time box.  This
does mean that in cases where the user doesn't have access to the
"Actions" associated with a review they are losing 25% (the fourth
column) of real estate for no reason.  This might be worth exploring
again in future.

Issue #2729

Hide admin button for users without admin access

There are several types of user with access to the review dashboard, but
only administrators are allowed to view the administrator pane.

This updates the admin dashboard to only render the admin button for
users with admin permission.  It also adds an ID to the button so
that test can reliably check for the presence of the button.

Issue #2724