* DEV: Fix the function prototype observers deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.observes('foo') to observer('foo', function() {}). [deprecation id: function-prototype-extensions.observes] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-observes for more details.
* DEV: Fix the function prototype event listeners deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.on('foo') to on('foo', function() {}). [deprecation id: function-prototype-extensions.on] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-on for more details.
* DEV: Simplify `default as` imports
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
This allows you to temporarily disable components without having to remove them from a theme.
This feature is very handy when doing quick fix engineering.
* fill blank space when no theme is selected
* animate row's height in themes/components list when selecting, and hide children list
* show warning when you move to a different page and have unsaved changes
* refactor `adminCustomizeThemes.show` controller
* allow collapsing/expanding children lists
* fix a bug when adding components to a theme (changed the way it works slightly)
* a bunch of other minor things
