[Feature]: Allow to change the editor font size

[algorev]

Feature description

Currently, we can change the font size in the terminal. We cannot do this in the editor, as far as I know. There is no menu option for this, and I haven't found any option in the settings for that either. For the same reasons one might change the font size in the terminal, one might want to change the editor font size.

Implementation Suggestion

Implement this in the same way as the terminal font size settings: have an option in the editor widget settings to change the font size, and add an option in settings.json.

Anything else?

No response

[sawka]

makes sense, and should be a straightforward addition.

[man98singh]

incase no one is assigned can i get assigned to this issue?