Creates Frontend Style guide

Closes #28713

See merge request !9961

Update user's profile preferences docs

See merge request !10147

Fix some random failures

See merge request !10142

- Document all options
- Change links that point to docs in the application

Fixed pagination in projects & snippets on user page

Closes #29624

See merge request !10048

Update 8.13-to-8.14.md: Fixed gitlab-shell version

See merge request !10125

Resolve "Follow-up from "Escape route path for LIKE queries""

Closes #29775

See merge request !10137

Spam check only when Snippet / Issue "title" or "description" are changed

Closes #29483 and #29645

See merge request !10104

Add global `g t` shortcut to go to todos

See merge request !10041

Move the 9.0.0 CHANGELOG entries to the top

See merge request !10136

Fixed the job tootip being cut-off

Closes #29800

See merge request !10135

[ci skip]
Signed-off-by: Rémy Coutable <remy@rymai.me>

[ci skip]

Closes #29800

Clean cache after bundling

See merge request !10047

Resolve "Upgrade Vue to >=2.2.0 and disable development warnings in tests"

Closes #29043

See merge request !9981

Removed unnecessary 'add' text in additional award emoji button

See merge request !10124

Remove Vue from the global space

See merge request !10056

Escape values passed from Rails to Vue to make sure the template can be compiled

See merge request !10122

Fix routes index migration

See merge request !10121

For example:

    index_exists?(:routes, name: INDEX_NAME) # => false
    index_exists?(:routes, :path, name: INDEX_NAME) # => true

Revert "Merge branch '29534-todos-performance' into 'master'"

Closes #29758

See merge request !10116

Escape route path for LIKE queries

Closes #29583

See merge request !10117

Replace closing MR icon

Closes #29584

See merge request !10103

Prevents error on nil author from Issuable author_name

See merge request !10112

Merge branch '29302-improve-the-prometheus-queries-for-multiple-container-environments' into 'master'

Resolve "Fix the Prometheus queries for multiple container environments"

Closes #29302

See merge request !9949