[feat] Alt + DblClick should create a selection

[michaljerabek]

Describe the problem

Currently Alt + Click adds a new cursor, DblClick has no function.

Describe the solution you'd like

Alt + DblClick should create a selection (for the new cursor) just like a normal DblClick does. This is how it usually works. Thanks for consideration.

Alternatives considered

No response

Additional context

No response