Remove `feature_flag_audit` feature flag

Closes #10321

See merge request gitlab-org/gitlab-ee!9949

Remove feature flag and specs for it being turned off

Add end-of-string to regex example

Closes #58031

See merge request gitlab-org/gitlab-ce!26302

[Part 1] Add Vuex store for Roadmap

See merge request gitlab-org/gitlab-ee!10346

Docs cleanup fe

See merge request gitlab-org/gitlab-ce!26158

Add highest_role method to User

See merge request gitlab-org/gitlab-ce!25462

Be more precise about feature availability

See merge request gitlab-org/gitlab-ee!10362

Implemented trimming for item's name in Web IDE

Closes #57540

See merge request gitlab-org/gitlab-ce!26270

Fix date save for Epic to reflect on UI immediately after save

Closes #10543

See merge request gitlab-org/gitlab-ee!10321

Fixes a bug where changing epic start/finish date with type fixed
is not reflected on UI immediately and requires user to refresh
the page.

Adds Vuex store with mutations, getters and actions and initial support
for initializing state object on app initialization.

Mock and wait for timers in Jest

Closes #56056

See merge request gitlab-org/gitlab-ce!26433

Automate base domain help text on Clusters page

Closes #57357

See merge request gitlab-org/gitlab-ce!26124

Display draft when toggling replies

Closes #48211 and #56364

See merge request gitlab-org/gitlab-ce!25563

Display draft when toggling replies (EE-port)

Closes gitlab-ce#48211 and gitlab-ce#56364

See merge request gitlab-org/gitlab-ee!9973

Display the database adapter name in a human-friendly way

See merge request gitlab-org/gitlab-ce!26437

Display the database adapter name in a human-friendly way

See merge request gitlab-org/gitlab-ee!10356

Improve Youtrack documentation for style

See merge request gitlab-org/gitlab-ce!26457

YouTrack docs review

Closes #58225

See merge request gitlab-org/gitlab-ce!26454

Clarify wiki permissions

Closes #53964

See merge request gitlab-org/gitlab-ce!23044

Port of CE changes to EE.

Start moving back to regular fe_docs
Remove Initiatives, add section to index in fe_guide
Delete some no-longer-relevant parts from principles
Update title - Progressive Enchancement is a browser-support term
and could be confused
"When to use" parts are discussed elswhere
Vue & jQuery issue is no longer relevant
Delete duplicate Security docs
Remove empty files, move event_tracking
Shuffle index sections around
Remove sections on Vue & Webpack (we say same thing in prev paragraph)
Remove link to Droplab docs

Fix markdown table header and table content borders

Closes #57655

See merge request gitlab-org/gitlab-ce!25666

Rollback change that adds :not(js-syntax-highlight) pseudo-class
to markdown selectors to fix syntax highlight tables in
MR code suggestions. Removes redundant inclusion of
md-typography mixin as an alternative fix.