Previously the `|| null` was ensuring that the return type of the helper
function was `HTMLElement | null`, rather than `HTMLElement | null
| undefined`, which allowed the tests to check against just `null`.
Instead of documenting that oddness, this just changes the tests to
expect an HTMLElement (or not), removing the need to avoid `undefined`.

Each dropdown now:

- stays open as items in it are checked/unchecked
- has a header and close button
- shows a search box when there are many items in it
- use a more specific name for the "All" filter; e.g., "All severities"

Truncate long tags in runners table

See merge request gitlab-org/gitlab-ce!26666

Move some EE-specific Karma tests to Jest

See merge request gitlab-org/gitlab-ee!10463

Add DAST as filter option in the Group Security Dashboard

Closes #8483

See merge request gitlab-org/gitlab-ee!10271

[CE] Reduce diff with EE in `spec/helpers`

Closes gitlab-ee#10143

See merge request gitlab-org/gitlab-ce!26706

[EE] Reduce diff with EE in `spec/helpers`

Closes #10143

See merge request gitlab-org/gitlab-ee!10477

Improve location fingerprint

See merge request gitlab-org/gitlab-ee!10487

Use colon as other parsers do
and move path to the first place
because it's the most important item

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

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

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

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

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

Don't cutoff letters in MR and Issue links

See merge request gitlab-org/gitlab-ce!25910

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

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

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

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

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

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

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

Update dependency @gitlab/svgs to ^1.55.0

See merge request gitlab-org/gitlab-ce!26664

# Conflicts:
#   package.json

Further refinement of introduction text

See merge request gitlab-org/gitlab-ee!10440

Remove redundant group name from environment name on the "Environments" page

Closes #24936

See merge request gitlab-org/gitlab-ce!25600