* Add hide activity option

This closes https://github.com/go-gitea/gitea/issues/7927

* Adjust for linter

* Adjust for linter

* Add tests

* Remove info that admins can view the activity

* Adjust new tests for linter

* Rename v139.go to v140.go

* Rename v140.go to v141.go

* properly indent

* gofmt

Co-authored-by: Jonas Lochmann <git@inkompetenz.org>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>