* DEV: Add the actual "tag_groups/new" route
Allows refreshing the "new" page without an error.
* DEV: Prevent attempts to create group tags if tagging is disabled
* DEV: Refactor the tag-groups controller
Gets rid of `selectedItem`, `selected`, and `selectTagGroup` action.
* DEV: Rename tag-groups-show to tag-groups-edit
* DEV: Refactor tag-groups form
* Extracted the tag-groups-form that's used by tag-groups-new and tag-groups-edit
* The model is now a buffered property
* Serialization relies more heavily on RestAdapter now
* Data is sent as JSON
* Payload is now namespaced ("tag_group")
* Update app/assets/javascripts/discourse/controllers/tag-groups-new.js.es6
Co-Authored-By: Joffrey JAFFEUX <j.jaffeux@gmail.com>
* Update app/assets/javascripts/discourse/components/tag-groups-form.js.es6
Co-Authored-By: Joffrey JAFFEUX <j.jaffeux@gmail.com>
* Update app/assets/javascripts/discourse/controllers/tag-groups-edit.js.es6
Co-Authored-By: Joffrey JAFFEUX <j.jaffeux@gmail.com>
