[FEATURE REQUEST] Add toggle to fully disable the magnifier

[BrodieRobertson]

In its current form whenever a user interacts with the magnifier bindings, the magnifier will be enabled and this is a good default to have, however some users will never interact with the magnifier so it's probably a good idea to allow them to fully disable the feature like is possible on KDE.

[akdor1154]

Possibly related - I really frequently trigger the magnifier by accident, because my mouse scroll wheel is free-spinning and it's very easy to trigger Super+Wheel when moving windows around.

• maybe there could be some fancy hysteresis on the amount of HIRES wheel movements required to trigger the thing
• or maybe I could just disable the wheel shortcuts (they're mouse bindings so they're not [yet?] wired up to the shortcuts system)
• or maybe I could just disable the magnifier (easiest for everyone and the reason I'm piggybacking on here instead of spamming a new issue :) )

tl;dr disabling would be fine+great, just including context for UX design reasons. If I were vision-impaired I'd definitely be wanting one of the first two options though.

[WatchMkr]

An option to disable Super+Scroll will be added.