Refactored the user callout class

Closes #29955

See merge request !10213

[ci skip]

Remove spreadString in favor of polyfilled Array.from

See merge request !10203

Fix environment folder route when special chars present

Closes #29922

See merge request !10250

Fixed alignment of tooltip on card assignee

Closes #30123

See merge request !10261

Fixed issue boards sidebar alignment

See merge request !10260

Stops triggering board sidebar when clicking avatar

See merge request !10265

Add a new `stub_mattermost_setting` stub helper to properly stub Mattermost settings

Closes #30172

See merge request !10288

Support wider range of monitored environments with Prometheus

Closes #29874

See merge request !10159

Signed-off-by: Rémy Coutable <remy@rymai.me>

Closes #30123

Fix Gitlab::EeCompatCheck: use `ee_branch_found` instead of `ee_branch`

Closes #30136

See merge request !10255

Use `:empty_project` where possible in service specs

See merge request !10274

Update wikis_controller.rb to use strong params

Closes #23363

See merge request !10240

Signed-off-by: Rémy Coutable <remy@rymai.me>

If wget fails, remove the empty file created

See merge request !10257

Adds entry about kebab case props in documentation

Closes #29973

See merge request !10208

Fix sub-nav highlighting for `Environments` and `Jobs` pages

Closes #30112

See merge request !10254

Spread out webpack bundles per-line to reduce conflicts in EE

See merge request !10269

update test_bundle.js ignored files

See merge request !10228

Improve UX guide on tooltips

See merge request !10220

Change Done column to Closed in issue boards

Closes #29420

See merge request !10198

Correct example value variable name.

See merge request !10256

Bring back option to be notified of own activity

See merge request !10032

Use same variable for registry password as above

See merge request !10238

remove some unused sidebar styles

See merge request !10200

Only load what we need when visiting MR diffs page

See merge request !10251

Resolve "Consider tracking the EE test suite with `rspec_profiling`"

Closes #29787

See merge request !10226

CI_REPOSITORY_URL is the correct name.

Signed-off-by: Rémy Coutable <remy@rymai.me>