Addresses: Issue #13810

1. Adds a last_used_at attribute to the Key table/model
2. Update a key's last_used_at whenever it gets used
3. Display how long ago an ssh key was last used

Fixed discussion note resolve button SVG color

See merge request !8250

Allow to add deploy keys with write-access

Closes #1376

See merge request !7383

Rename users with namespace ending with .git

See merge request !8309

Switch to Discourse's EmailReplyTrimmer for more robust reply parsing

See merge request !7473

Added changelog for MR !8322

See merge request !8325

[ci skip]

Disable timeout while removing services

Closes #25976

See merge request !8322

Merge branch '25931-gitlab-merge-request-view-crash-when-commiting-a-js-sourcemap-file' into 'master'

Resolve "Gitlab merge request view crash when commiting a js sourcemap file"

Closes #25931

See merge request !8310

Rename filename to file path in tooltip of file header in merge request diff

See merge request !8314

Rename "autodeploy" to "auto deploy"

Closes #25999

See merge request !8289

Fix build failure links in Slack

See merge request !8311

On GitLab.com this migration could take about 3 minutes. Disabling the
statement we know we have enough time to complete this.

Fixes #25976

Order only for latest_successful_for

See merge request !8301

Fix single team selection

See merge request !8251

Hide Scroll Top button for failed Build page

Closes #26040

See merge request !8295

Fixes timestamp text alignment in mr-list and issue-list

Closes #25909

See merge request !8271

Fixed error with GFM autocomplete when no data exists

See merge request !8288

Fix line breaking in nodes of the pipeline graph in firefox

Closes #26026

See merge request !8292

fixes confidential warning alignment on comment box

Closes #26038

See merge request !8293

Don't try to highlight and cache files hidden by .gitattributes entries.

In issue view, remove checking branches state

See merge request !8023

Replace wording for slash command confirmation message

See merge request !8123

We don't need to create the intermediate FileCollection object with its
associated highlighting in order to count how many files changed. Both
the compare object and the MR diff object have a raw_diffs method that
is perfectly fine for this case.

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

UX Guide: add comment and discussion to copy

See merge request !8206

Add more storage statistics

See merge request !7754

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8286#note_20461082

Fix whitespace in codeblock

See merge request !8291

Revert "Merge branch 'fix-latest-pipeine-ordering' into 'master'"

See merge request !8302

This reverts merge request !8286