request: make zoom in/out accessible via keyboard

[Majzoub, Eric]

Would it be possible to make the menu items for 'zoom in' and 'zoom
out' accessible via the keyboard?

The reason for the request is that some tabs of the interface start in
very tiny font size. In particular the welcome tab, and any other tab
that pops up, for example under a search using '??'. I'm on ubuntu
22.04 using Rkward 0.7.4. I have a hidpi screen on a xps 13 2-in-1.
I've tried changing the scaling factors and dpi with environment
variables for QT but if I get those set so that the fonts are good,
then the icons are hilariously large. There is no Goldilocks point for
me. Changing the font in the tabs using the zoom menu works but is
cumbersome with multiple clicks. Keyboard presses would be welcome.