* Improve category level limit validation
* Set categories list only for non parents
* Disable select field
* Add info about the disabled select
* Don’t render a select input for parent categories
* Handle correctly turbo_stream request format
* Add turbo_stream format to requests on create and update action's tests
* Remove no_content status from update action
* Revert "Remove no_content status from update action"
This reverts commit 866140c196337d0f38ecf42fc3808fee3d502708.
* Revert "Add turbo_stream format to requests on create and update action's tests"
This reverts commit c6bf21490f79c657acbdda58c4cece7ba25d999a.
* Add correct redirect url for both html and turbo_stream formats
* Remove useless turbo_frame_tag