enabled word breaking of card title as it gets overlapped by the assignee's icon when its a single long line with no spaces

Move html to haml file instead of JS

Closes #45314

Revert "Merge branch '44870-remove-extra-space-around-comment-form-on-merge-requests' into 'master'"

This reverts merge request !18120

Also fixes spec failures on presenter and docs

Includes:
- Model, factories, create service and controller actions
- As usual, includes specs for everything
- Builds UI (copy from PAT)
- Add revoke action

Closes #31591

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>