* Refactor `i18n` to `locale`
- Currently we're using the `i18n` variable naming for the `locale`
struct. This contains locale's specific information and cannot be used
for general i18n purpose, therefore refactoring it to `locale` makes
more sense.
- Ref: https://github.com/go-gitea/gitea/pull/20096#discussion_r906699200
* Update routers/install/install.go
* Implemented "Reference in new issue"
* Fixed menu style on "pulls/x/files" because "button" has a style.
* Added context menu for PR file comments.
* Use only a single modal for every comment.
* Use current repository as default. Added search filter.
* Added suggested changes.
* Fixed assignment.
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>
