Left Handed Mode

[EricBAndrews]

Requirements

• [x] There are no existing issues for this feature.
• [x] This is a request for a single feature (create multiple issues for multiple feature requests).

Description

This mode would invert the layout to be ergonomic for left handed users.

https://lemmy.ml/post/28165649/17765031

[Sjmarf]

In theory this should be dead easy at a basic level - iirc there's an environment value we can set to flip everything. Though it could get significantly more tricky if we only want to flip some things, and leave other things untouched.