Increase the number of keys in popups

[BlackyHawky]

Is your feature request related to a problem? Please describe. Not really.

Describe the solution you'd like I don't think adding a new setting is necessary; only the part of the code that manages the number of keys in popups should be modified.

Use case I've customized the long press of the spacebar to bring up the emojis I use most often. However, we are currently limited to using only 20 keys maximum in popups.

It would be nice if this number could be increased to 40 for example (8 columns, 5 rows).

Describe alternatives you've considered (if any) Null