Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/27070

Deprecate "chat commands" in favor of "slash commands"

We looked for things like:

 - `slash commmand`
 - `slash_command`
 - `slash-command`
 - `SlashCommand`

Conflicts:
	doc/user/project/slash_commands.md
	doc/workflow/time_tracking.md

EE: Use the same way to invalidate cache from EE

See merge request !2134

[ci skip]

[ci skip]

Adding Benefit and Qualification sections to EE products

See merge request !2110

Fix transient error with filtered search lazy author/assignee tokens

Closes #2661

See merge request !2142

Fix https://gitlab.com/gitlab-org/gitlab-ee/issues/2661

CE Upstream - Monday

Closes omnibus-gitlab#1714, gitlab-ce#32587, and gitlab-ce#32218

See merge request !2107

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Related issues FE Base

Closes #2001

See merge request !1797

Remove duplicate Project after_validation entry

See merge request !2133

If we don’t do this the links are unclickable because the top bar is on top of them.

:web_url will expose the full URL to the group making it unreachable on tests since the URL will not have the correct port on it.

Geo: Fix Dynamic Backoff strategy and add specs

Closes #2639

See merge request !2128

This could be caused by a double request or could have been remoevd by
someone else in another tab

See the previous version of this MR,
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1816

Also includes refactoring updates

See https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1797

Conflicts:
	app/assets/javascripts/issuable/issuable_bundle.js

See https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1797

See https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1797

See https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1797

[EE] Add a custom RSpec/SingleLineHook cop

See merge request !2036