Fix DropLab in IE11 v1 (merge edition)

Closes #26785

See merge request !8689

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/26785

Revert "Merge branch '25709-diff-file-overflow' into 'master'"

See merge request !8688

This reverts merge request !8475

Add index for ci_builds that makes shared runners query to run 100x faster.

See merge request !8683

Do not generate pipeline ref path if ref not present

Closes #26861

See merge request !8658

Revert "Merge branch '26785-fix-droplab-in-ie-11-v1' into 'master'"

See merge request !8680

This reverts merge request !8675

Fix DropLab in IE11 - v1

Closes #26785

See merge request !8675

Merge branch '26623-search-bar-dropdown-doesn-t-load-when-you-go-back-in-browser-history' into 'master'

Fixed search component not instantiating back when pressing the back button on the issue page

Closes #26623

See merge request !8676

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/26785

Resolve "Filter issues input does not show assignee name when there is an assignee ID in the URL"

Closes #26955

See merge request !8674

Merge branch '26617-search-bar-filter-dropdown-does-not-dismiss-when-sort-dropdown-is-selected' into 'master'

Changed the event listener target from window to document in droplab

Closes #26617

See merge request !8670

Added current user filter to assignee dropdown

Closes #26959 and #26882

See merge request !8653

Revert "Merge branch 'backport-fix-load-error' into 'master'"

See merge request !8678

This reverts merge request !8671

Don't define ApplicationSetting defaults in a constant

See merge request !8671

remove 2gb tag from ci

See merge request !8672

Keep mini graph down pipelines index

See merge request !8651

Responsive title in diffs inline, side by side, with and without sidebar

Closes #25709

See merge request !8475

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

Fix shared runners queue update

See merge request !8663

Fix participants margins to fit on one line

See merge request !8640

Fix import no longer mapping users as admin

Closes #25346

See merge request !8625

Don't persist application settings in test env

See merge request !8573

Record used SSH keys only once per day

Closes #26877

See merge request !8655

Use Workhorse v1.3.0

See merge request !8660