[REQ] [QoL] Functional swipe left/right to increase productivity

[jakemkc]

Describe your feature request
Hi all,

Have been a long time user and supporter of FSNotes here.

Most of my time, I take notes in FSNotes. Recently I found out the iA Writer app, and have more drafting there because iA Writer has a focus on writing. Both of the apps have file system-based storage and it's nice can have them work together and share a single library.

One of the handy features I found in iA writer is "functional swiping".

When I hover the mouse pointer on the left side of the app (sidebar and note list), I can simply swipe left/right (magic mouse or touchpad) to go to focus mode by hiding/ showing the note list and sidebar area; when I hover the pointer in the editor panel on the right side, a left/right swipe means a quick switch of editing and preview mode.

This really help to focus and be productive if you have a large and complex folder structure.

I wonder if FSNotes can implement similar feature in the macOS version? the iOS version already have similar feature (about hiding sidebar), but it's more like for saving space than for the productivity and focus.

I believe that this handy feature is a welcome addition to other users too.

Additional context
Hope to have this feature in the macOS version