Prettify all the things (part 1)

See merge request gitlab-org/gitlab-ce!22248

Resolve "Share frontend configs between repos"

Closes #49740

See merge request gitlab-org/gitlab-ce!22405

2. enable jasmine/no-promise-without-done-fail

See merge request gitlab-org/gitlab-ce!22231

Fix "ready for review" link

See merge request gitlab-org/gitlab-ce!22393

Fix commit signature error when project is disabled

Closes #50903

See merge request gitlab-org/gitlab-ce!22344

Resolve "Webhook Image URLs Rewritten Incorrectly in Issues"

Closes #52650

See merge request gitlab-org/gitlab-ce!22361

Prettify all the things (part 6)

See merge request gitlab-org/gitlab-ce!22256

Fixes styling issues in test reports

Closes #51386 and #52147

See merge request gitlab-org/gitlab-ce!22204

Resolve "Project slug does not auto populate in IE11"

Closes #52686

See merge request gitlab-org/gitlab-ce!22367

Verify that usage ping works when all counts time out

See merge request gitlab-org/gitlab-ce!22358

[QA] Handle sign-up when terms must be accepted

See merge request gitlab-org/gitlab-ce!22374

Add IID headers to E-Mail notifications

Closes #52477

See merge request gitlab-org/gitlab-ce!22263

Fixed file templates not clearing in Web IDE

Closes #52487

See merge request gitlab-org/gitlab-ce!22357

Document linguist overriding

See merge request gitlab-org/gitlab-ce!22386

Fixes diff stats not being visible with performance bar

See merge request gitlab-org/gitlab-ce!22390

Disable artifact validation for download action

See merge request gitlab-org/gitlab-ce!22300

Use grpc v1.15.x

See merge request gitlab-org/gitlab-ce!22350

These headers can be used to build URLs for API requests. Good examples
would be Issues and Merge Requests

Update git and install git-lfs QA docker image

See merge request gitlab-org/gitlab-ce!22355

Remove assignee_id=0 condition from search filters, we agreed
that just presence of "ready of review" label is sufficient
for filtering MRs, no need to unassign yourself.

Project::ClustersController spec improvement

See merge request gitlab-org/gitlab-ce!22346

Users report that some languages aren't detected, or at least not
reported. This is mostly due to the fact that these languages aren't
programming languages, according to Linguist.

Originally noted in: https://gitlab.com/gitlab-org/gitlab-ce/issues/50705#note_99600216

Related: https://gitlab.com/gitlab-org/gitlab-ce/issues/51995

This rewrote URLs to be absolute URLs. However, for uploads (the most
common case), we actually need them to point to not just the GitLab
instance, but the project they're from. Thankfully, we can normally get
that information from the object we're building the hook for.

Resolve "Prometheus not showing as installed, even though it is"

Closes #51972

See merge request gitlab-org/gitlab-ce!22356

Make source param optional according to EE change

See merge request gitlab-org/gitlab-ce!22283

It has been pointed out that `go` is used quite extensively so it's not
an unknown idiam here at GitLab. And we have arguments with `go` which
is a plus.

Use InvalidUTF8ErrorHandler only for rails 4

Closes #51908

See merge request gitlab-org/gitlab-ce!22340

Before this commit updating Prometheus (e.g. adding alerts) made it
"updated" therefore not installed.

Fix typo: 9.5.8 => 9.5.10

See merge request gitlab-org/gitlab-ce!22368

Fix link to 'when delayed' YAML configuration item

See merge request gitlab-org/gitlab-ce!22349