Keyboard shortcut & gesture to go "back"

[samhashemi]

I use the app in a small window, in it's mobile mode.

It's terrific, but hard to go "back" to the list view. It would help if:

1. There was a keyboard shortcut to go back. ⌘[ would be a good option.

2. I could two finger swipe horizontally to go back. Many multiple-pane apps do this, especially note apps. See Ulysses or IA Writer for example.

[davewhitley]

This possible might help electron/electron#4181

also electron/electron#4843

[davewhitley]

Electron does not support this currently. We could do a keyboard shortcut.

[dmsnell]

Closing here and folding into #37