Resolve "Improve Web IDE left panel and modes"

Closes #44846

See merge request gitlab-org/gitlab-ce!18581

Upgrade underscore.js

See merge request gitlab-org/gitlab-ce!18578

Enable prometheus metrics by default

Closes #43660

See merge request gitlab-org/gitlab-ce!18723

Add signature verification badge to compare view

See merge request gitlab-org/gitlab-ce!18245

Resolve "CI retry/cancel job or pipeline redirect the user and can't be open in a new tab"

Closes #33697

See merge request gitlab-org/gitlab-ce!18451

Backport CE changes from "autocomplete usernames in Epic comments/description"

See merge request gitlab-org/gitlab-ce!18605

Remove top margin on the terms page with performance bar

Closes #46064

See merge request gitlab-org/gitlab-ce!18752

Update instalation from source guide

See merge request gitlab-org/gitlab-ce!18691

Resolve "Specify variables when executing a manual pipeline from the UI"

Closes #44059

See merge request gitlab-org/gitlab-ce!18440

Partially revert ebcd5711 to fix runner pages

See merge request gitlab-org/gitlab-ce!18763

fix Web IDE file tree scroll issue

See merge request gitlab-org/gitlab-ce!18721

hide success message when staging files
improve action button hover

Resolve "Move `import_status` out of `projects`"

See merge request gitlab-org/gitlab-ce!18688

Resolve "Import/Export (import) is broken due to the addition of a CI table"

Closes #46049

See merge request gitlab-org/gitlab-ce!18745

Ensure web hook 'blocked URL' errors are stored in as web hook logs and properly surfaced to the user

See merge request gitlab-org/gitlab-ce!18746

[ci skip]

Updated commit section in IDE sidebar

See merge request gitlab-org/gitlab-ce!18616

Enforce application wide terms

Closes #44798

See merge request gitlab-org/gitlab-ce!18570

AutoDevOps Docs fix invalid external link

Closes #46056

See merge request gitlab-org/gitlab-ce!18748

Ignore knapsack and rspec_flaky

See merge request gitlab-org/gitlab-ce!18747

Backport IdentityLinker#failed? from GroupSaml callback flow

See merge request gitlab-org/gitlab-ce!18749

Ensure when accessing Rails, we really get ::Rails (and not Sidekiq::Rails)

See merge request gitlab-org/gitlab-ce!18730

Added merge request review to IDE sidebar

See merge request gitlab-org/gitlab-ce!18709

fixed form collapsing too soon