Improve tests' speed and de-quarantine tests

See merge request gitlab-org/gitlab-ee!14320

With the new assertions we benefit from:
- Running the test faster
- Testing the real functionality instead of only asserting on
messages

Fix unresponsive reply button in discussions

Closes #63200

See merge request gitlab-org/gitlab-ce!29936

Events listeners have been fixed to ensure UI interactions are
properly handled in discussion notes

Add a danger rule to suggest `docs-` prefixes

Closes #54490

See merge request gitlab-org/gitlab-ce!30115

Change GetRawChanges RPC to use bytes

Closes gitaly#1470

See merge request gitlab-org/gitlab-ce!28164

Update doc link on IP restriction

See merge request gitlab-org/gitlab-ee!14390

Improve accessibility tooling documentation

See merge request gitlab-org/gitlab-ce!30114

Fix background migrations failing with unused replication slot

Closes #63666

See merge request gitlab-org/gitlab-ce!30042

Add permission check to metrics dashboards

See merge request gitlab-org/gitlab-ce!30017

Adds permission checks to the metrics_dashboard endpoint. Users
with role of Reporter or above should have access to view the
metrics for a given project.

If an MR only changes files within `doc/` we can save valueable CI time
by prepending a branch name with `docs-`. This danger rule helps educate
people about that fact.

On the other hand, if someone has a branch with a `docs` prefix or
suffix, the branch shouldn't contain any changes outside of the `docs`
directory

Removes EE differences for spec/javascripts/vue_mr_widget/mr_widget_options_spec.js

Closes gitlab-ee#12436

See merge request gitlab-org/gitlab-ce!30091

Removes EE differences for sp.js

Closes #12431

See merge request gitlab-org/gitlab-ee!14431

Remove duplicate frontend spec

Closes #12430

See merge request gitlab-org/gitlab-ee!14418

Enable Gitaly ref caching for SearchController

See merge request gitlab-org/gitlab-ce!30105

Fix styling for `app/assets/stylesheets/framework/notes.scss`

Closes #59884

See merge request gitlab-org/gitlab-ce!26879

Fix incorrect reaction placement in commit diff discussion

Closes #54595

See merge request gitlab-org/gitlab-ce!29445

Add links to useful browser extensions and learning resources to the
FE-accessibility documentation.

Update toast action selector

See merge request gitlab-org/gitlab-ce!30024

Updated the toast action selector to `first-of-type` instead

Refactor EE find_group_cluster_platform_kubernetes

See merge request gitlab-org/gitlab-ee!14422

Unquarantine fixed tests

See merge request gitlab-org/gitlab-ce!30109

Add dependency_list_vulnerabilities feature flag

See merge request gitlab-org/gitlab-ee!14359