* [MM-55143] Disallow reacting with an emoji that does not exist
* WIP for server limit on emoji reactions
* WIP
* Implement default limit of 25 unique emoji reactions
* Add modal for reaction limit
* Fix test
* PR feedback
* Fix i18n
* Update admin string
* Merge'd
* Fixing some issues, check limits correctly based on other users reactions
* Fix typos
* Fix lint/test
* Add tests, fix other tests
---------
Co-authored-by: Mattermost Build <build@mattermost.com>
In a single createPost flow, there were
3 separate calls to App.IsCRTEnabled. This
showed up very slightly in the CPU profiles.
Not a big deal, but good to get it out of
the way.
```release-note
NONE
```
It was a good decision in hindsight to keep the public module as 0.x
because this would have been a breaking change again.
https://mattermost.atlassian.net/browse/MM-53032
```release-note
Changed the Go module path from github.com/mattermost/mattermost-server/server/v8 to github.com/mattermost/mattermost/server/v8.
For the public facing module, it's path is also changed from github.com/mattermost/mattermost-server/server/public to github.com/mattermost/mattermost/server/public
```
