Optional override when choosing "Implement all members"

[nilskp]

Is your feature request related to a problem? Please describe.
Scala allows, but doesn't require, the override modifier on methods that don't actually override anything, but instead implements an abstract method. This makes the use of override on implementations mostly a style issue.

Describe the solution you'd like
It would be nice to have an option in Settings to disable override modifier when choosing "Implement all members" as well as any other place it's added automatically. Or enable it, e.g.

Add `override` modifier when implementing members ☑

Describe alternatives you've considered
Manually delete it.