* Align styles with product empty states
* Update illustrations
* Remove old illustration, others will be removed from the library in the future

Changelog: changed

Changelog: changed

Changing `/-/profile` -> `/-/user_settings/profile`

This reverts merge request !142859

Upgrades tanuki_emoji and generate a new version of our emojis.json that
orders emojis based on
https://unicode.org/emoji/charts/emoji-ordering.txt

Remove maximum-scale limits from meta

Changelog: fixed

Chengelog: other

Changelog: added

Update header logo, twitter card, touch icon, favicon, email logos, etc.
Changelog: changed

This adds a custom exceptions app that replaces a magic HTML comment in
an error page with some HTML displaying the request ID to the user. It
also adds that magic comment to the 500 error page, where it's most
useful (as we will want to look up the stack trace corresponding to that
request ID for a 500 error).

The reasons for making this a magic HTML comment are:

1. We don't need separate files that may drift apart from each other. An
   earlier version of this change added a new 500.html.erb file, which
   was almost identical to 500.html, just with the addition of some ERb
   code. If we changed one of those files, we'd need to change both.
2. If we disable this app, or it doesn't get called for some reason, the
   user will see no difference in the rendered output.
3. Similar to the above two reasons, these error pages in public/ are
   also used by Workhorse in some circumstances to replace the content
   sent by Rails. This is why we set the X-Gitlab-Custom-Error header
   when modifying the body, so that Workhorse does not then overwrite
   the HTML we want to send.

In other words, this should be a purely additive change: if it works,
great; if it doesn't, then there should be no difference.

This moves the Speedscope files from the asset pipeline to /public. We
only serve precompiled assets in production and we do not need these to
be compiled.

This also adds a nonce to the inline script tag so that it works when
CSP is enabled and script-src is restricted.

Reverts emoji version upgrade due to https://gitlab.com/gitlab-org/gitlab/-/issues/19477

This reverts commit 8a2b4545, reversing
changes made to 55250a64.

Updating the gem brings with it the correct sorting
of emoji for the award menu.

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/15744

Added the new images to make the diff of the emoji gem
upgrade easier

In this commit we exand the Robots.txt parser.
Now, `Allow` rules are parsed, they take precedence
over `Disallow` ones and the detection is case
insensitive.

As GitLab pages do access non-authenticated apis such as api/graphql
for the page to render correctly