Update MR-related docs

See merge request !12875

Add AD matching rule filter and more information

See merge request !12871

Merge branch '35069-stop-using-rgba-for-text-color-as-it-leads-to-worse-readability-on-non-retina-screens' into 'master'

Resolve "Stop using RGBA for text color as it leads to worse readability on non-retina screens"

Closes #35069

See merge request !12873

Fix javascript test coverage badge in README.md

See merge request !12878

Update metric names to match Prometheus guidelines.

Closes #35031

See merge request !12812

Fixes the user order being overriden in the autocomplete controller

See merge request !12868

Changes in msgid in synchronization gitlab.pot

See merge request !12861

Pass before_script and script as-is preserving arrays

See merge request !12680

Update Pipeline's badge count in Merge Request and Commits view to match real-time content

Closes #34075

See merge request !12789

Recover from renaming project that has container images

Closes #23019

See merge request !12840

Refactor user bundle

See merge request !12728

Remove the rest of `trigger_schedule` related codes

Closes #32032

See merge request !12839

Remove Inactive Personal Access Tokens list from Access Tokens page

Closes #19629

See merge request !12866

Revert "Merge branch 'revert-2c879643' into 'master'"

See merge request !12870

This reverts merge request !12633

Update the mysql2 gem to v0.4.5

See merge request !12859

Instrument Ability

See merge request !12865

Gitlab::Git shuffling and Gitaly annotations

See merge request !12849

Extract partials from the protected_branches & protected_tags views

See merge request !12864

Move find file URL out of global variable

See merge request !12846

Fixes needed when GitLab sign-in is not enabled

See merge request !12491

Fix spacing in sidebar

Closes #35035

See merge request !12844