Resolve "MR: Reduce the memory footprint of the component tree"

Closes #48964

See merge request gitlab-org/gitlab-ce!20448

Add merge request header branch actions left margin

Closes #49238

See merge request gitlab-org/gitlab-ce!20643

Resolve "Pipeline graph in new merge request widget is flickering"

Closes #49165

See merge request gitlab-org/gitlab-ce!20660

Highlighting of person mentions now better visible on low contrast screens and…

See merge request gitlab-org/gitlab-ce!20509

Remove sanitize_repo_path

Closes gitaly#1235

See merge request gitlab-org/gitlab-ce!20666

QA scenario to add/edit/delete a file via the Web UI

See merge request gitlab-org/gitlab-ce!20265

Merge Templates updates

See merge request gitlab-org/gitlab-ce!20585

Close revert and cherry pick modal on escape keypress

See merge request gitlab-org/gitlab-ce!20341

This method is unneeded given its been pushed to Gitaly, through
https://gitlab.com/gitlab-org/gitaly/merge_requests/780

Closes https://gitlab.com/gitlab-org/gitaly/issues/1235

Document pattern for .find_or_create and siblings

See merge request gitlab-org/gitlab-ce!20649

Add small improvement to Manifest import feature docs

See merge request gitlab-org/gitlab-ce!20637

Move Danger to test stage

Closes #49185

See merge request gitlab-org/gitlab-ce!20654

Add cross-link to N+1 issue

See merge request gitlab-org/gitlab-ce!20663

Implement customized sidebar

Closes #14995

See merge request gitlab-org/gitlab-ce!17940

[ci-skip]

Migrate merge base, merged branches, write ref

Closes gitaly#748, gitaly#695, and gitaly#799

See merge request gitlab-org/gitlab-ce!20639

Add emails delivery metrics

Closes #49214

See merge request gitlab-org/gitlab-ce!20638

Resolve "Change API docs to reflect that lookup by username does not require admin access"

Closes #38095

See merge request gitlab-org/gitlab-ce!20646

Update pipelines.md to have correct curl commands

See merge request gitlab-org/gitlab-ce!20653

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

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

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

Fix archived parameter for projects API

Closes #32301

See merge request gitlab-org/gitlab-ce!20566

Fix typo in CSS transform property for Memory Graph component

Closes #49291

See merge request gitlab-org/gitlab-ce!20650

Resolve "NoMethodError: undefined method `namespace' for nil:NilClass"

Closes #49061

See merge request gitlab-org/gitlab-ce!20615