[Feature request] UI for adding Windows to applications field

[kermitfrog]

Is your feature request related to a problem? Please describe.
Configuring windows to autosnap to a zone is currently quite cumbersome.

Describe the solution you'd like
2 ways to activate:

• a shortcut "Manage auto-snap for current window"
• releasing window on zone in the overlay while holding an additional modifier (e.g. shift)

Then a dialog pops up with auto-detected properties (class + the option to configure additional ones -> #112 ), and asks you to confirm. The zone would be the one the window is currently in (shortcut) / dropped onto (overlay). If that zone is null (floating) the dialog asks you to confirm deleting the window from the applications field.

Describe alternatives you've considered
Not ideal, but at least an improvement:
Shortcut to copy the current windows class into clipboard and open a dialog allowing you to edit the current configuration with at least basic syntax highlighting and auto-indent.