Add email confirmation field to registration form

Closes #3053

See merge request !7432

Remove unused `Project#web_url_without_protocol` method

See merge request !8416

Review commits and commit scss

See merge request !8010

Refactor issues filter in API

See merge request !8432

Add changelog entry for renaming API param

See merge request !8433

Fix project hooks params

Closes #26291

See merge request !8425

Gitlab::LDAP::Person uses LDAP attributes configuration

Closes #26290

See merge request !8418

Resolves overflow of dropdown text for long branch name

Closes #25580

See merge request !8118

Merge branch '25836-changing-from-version-in-diff-comparison-does-not-preserve-to-version' into 'master'

Resolve changing "from" version in diff comparison does not preserve "to" version

Closes #25836

See merge request !8328

We allow users to configure LDAP attribute preferences. For example,
email can be configured to use `mail`, `email` and `userPrincipalName`,
falling through to the next until a value is found. Prior to this
change, Gitlab::LDAP::Person did not honor this configuration. Now,
the class will honor `name` and `mail` configuration. It does not
handle `username`, or fallback to `first_name` + `last_name` in the
absence of `name`.

Resolve "Label autocomplete doesn't handle spaces after `~~`"

Closes #25964, #22058, and #23578

See merge request !8254

Disable award emoji button but display tooltip

Closes #26168

See merge request !8382

Removed bottom padding from merge manually from CLI because of repositioning award emoji's

See merge request !8398

Fixed regression of note-headline-light where it was always placed on 2 lines, e…

See merge request !8348

Use stable icon for Mattermost integration

See merge request !8252

Revert specific URL

See merge request !8321

Copy, don't move uploaded avatar files

Closes #26158

See merge request !8396

Fix cross-project references copy to include the project reference

Closes #25890

See merge request !8232

Remove bottom border from Issuable titles

See merge request !8278

[ci skip]

Fix Gemfile.lock for the octokit update

See merge request !8414

MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8158 updated
the octokit Gem but did not include all the changes for Gemfile.lock.

Also added relevant specs and refactored to_references in a bunch of places to be more consistent.

rewrite the item.respond_to?(:x?) && item.x? to item.try(:x?)

See merge request !8409

Add tests to cycle analytics

See merge request !7727

API: extern_uid is a string

Closes #26227

See merge request !8404

Update octokit to 4.6.2

See merge request !8158

It's too easy to mistype an email or password when signing up.
The support team is receiving an increasing number of requests
because users mistype their email. We can eliminate this problem
by requiring users to confirm the email before registering. The
same issue can occur for the password field so we should add
this, too. We should note that password confirmation is part
of the default Devise forms. I don't know why/when GitLab
removed it.