✨ Change font size inside text editing settings menu

[scrapp08]

Is your feature request related to a problem? Please describe.

Cannot change default system font size as it is not available inside the custom font picker

Describe the solution you'd like

Implement a setting that allows font size to be changed from this menu, perhaps something in the same style as line height

Describe alternatives you've considered

Embed option into font menu, such as Nova

Additional context

Mockup of how it could look in the new settings pane