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

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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