Improve icon types validator
Icon type: Image
Media Frame: Simplify toolbar & fix selection update
Media frame: Fix typo
Media frame: Simplify currentItem values collector
Media frame: Add states based on registered icon types
Basic icon selector with media frame (image disabled)
Improve collection handler
Rename views
One frame to rule em all
Collect menu items
Use .get() when checking for existing menu item in collection
Simplify menu item model
(re)set state on frame open
Store current menu item ID in frame's collection's props
FIx media.model.miMenuItem
Select!
Update selection on frame open
Update view's selection on activation
Improve add/remove handler