Whenever a person is creating a subset to publish, the "creator" widget
resets (where you choose the variant, product, etc.) so if the person
is publishing several images of the a variant which is not the default
one, they have to keep selecting the correct one after every "create".
This commit resets the original variant upon successful creation of a
subset for publishing.
* border hover has color without alpha
* changed border radius to 0.2em
* removed border from scroll area
* variant hint button has 0.5em width
* inputs in attribute definitions have smaller padding
* label is shown only to value inputs and added tooltips
* change spacing for attribute befinitions
* align labels to right
* implemented 'ComboBox' which ignores wheel events and has styled delegate
* PixmalLabel has minimum sizeHint
* cards are smaller
* renamed 'Options' to 'Context'
* implemented active state changes in card view
* set object name of main window to "PublishWindow"
* plugin don't have to pass 'title' to an error
* fix PySide6 support for custom keysequences
* check for exact match for all bindings
* added validation of exact match for save shortcut
* keep track about last context so it can be updated on context change
* don't use '_asset_name' attribute for validation of selected asset
* use current context after publisher window close