This commit optimizes the page loading of this page in several ways:

1. Remove exact counting of projects on the page. By default, a `SELECT
COUNT(*) FROM projects` would be called, which could take seconds on an
instance with many projects.

2. Preload project/namespace/routes where necessary. This reduces a
significant number of N+1 queries.

3. Remove the use of `becomes(Namespace)` because this causes a SQL
query each time it is called. Instead, use the Rails path helpers to
generate the path directly via `project.namespace`.

Closes https://gitlab.com/gitlab-org/gitlab/issues/119093

Add instructions on using GL SVGs

Closes #196766

See merge request gitlab-org/gitlab!23433

Update links to use .md suffix, not .html

See merge request gitlab-org/gitlab!23648

Internal links should use a .md suffix, not a .html suffix. This
commit corrects links across several files.

Add instrumentation for ETag cache hits (log 304, 429 responses)

See merge request gitlab-org/gitlab!22399

This lets us add logs for 304 or 429 responses
that Lograge doesn't pick up since this middleware
short-circuits Lograge.

Add note about translating class-level strings

See merge request gitlab-org/gitlab!23343

Update GitLab Runner Helm Chart to 0.13.0/12.7.0

See merge request gitlab-org/gitlab!23308

Rate limit project imports

See merge request gitlab-org/gitlab!22644

Rate limiter is irrespective of import type
Limiting 30 imports in 10 mins

Remove Geo Designs Feature Flag from Frontend

Closes #198417

See merge request gitlab-org/gitlab!23539

Remove reference in app.vue
Remove tests

Locale

Remove extra line for supported langs

See merge request gitlab-org/gitlab!23549

Remove async merge request widget feature flag

Closes #42724

See merge request gitlab-org/gitlab!23594

Remove invalid data from jira_tracker_data table

See merge request gitlab-org/gitlab!23621

- this removes the invalid data
- follow-up will reinsert them

Remove Code Review Analytics feature flag

Closes #194165

See merge request gitlab-org/gitlab!23418

Create GKE submit button component

See merge request gitlab-org/gitlab!23205

Add footnote about .NET framework support [docs]

See merge request gitlab-org/gitlab!23233

Update SAST Docs to address windows containers

See merge request gitlab-org/gitlab!23531

documentation: Remove accidental nesting.

See merge request gitlab-org/gitlab!23376

Add language tags to code blocks

See merge request gitlab-org/gitlab!23468

Add docs for testing import project

Closes #197938

See merge request gitlab-org/gitlab!22212

Also added note about silent errors and import_failures

Clarify in permissions doc: owner is at group level not project

See merge request gitlab-org/gitlab!23628

Groups::ImportExport::ExportService to require admin_group permission

See merge request gitlab-org/gitlab!23434

Closes https://gitlab.com/gitlab-org/gitlab/issues/42724

Replace the 'Coding style proposal' issue template with a MR template

See merge request gitlab-org/gitlab!23538

Update dependency @gitlab/ui to ^8.21.0

See merge request gitlab-org/gitlab!23618

Add FLASH_TYPE constants for createFlash

See merge request gitlab-org/gitlab!23390

This makes Code Review Analytics generally available

Group WebHooks API

Closes #2792

See merge request gitlab-org/gitlab!22994

Merge branch '197952-convert-jest-tests-to-use-vtu-in-spec-frontend-vue_shared-components' into 'master'

Convert Jest tests to use VTU in 'spec/frontend/vue_shared'

Closes #197952

See merge request gitlab-org/gitlab!23501

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