Add functional key FORWARD_DELETE (delete equivalent of backspace).

[Symbiomatrix]

Is your feature request related to a problem? Please describe. As far as I can tell, FORWARD_DELETE is not implemented (no references besides in floris' keycode.kt). Standard pc keyboard key, shortcut for going right and backspacing (can be inconvenient on repeat).

Describe the solution you'd like An additional delete key which can remove the character one position ahead of the cursor, which can be added to layout (ie reference in keylabel.kt).

Use case Simple convenience function - I often move the cursor around by tapping the text, and due to inaccuracy sometimes the cursor falls somewhere in the vicinity of say a target word instead of exactly at its end; being able to delete on both sides, you can wipe it in full from any point.

Describe alternatives you've considered (if any) Right+'backspace' delete. But it's in a similar vein as "let's not define END because there's down+HOME+left to do that", kind of awkward and even worse here since deletes are repeatable unlike home/end.