[Feature Request] Add Access Keys / Mnemonics to Tray context menu

[SreenikethanI]

Feature request to add Access Keys / Mnemonics to the Tray context menu, i.e. Underlined letters which indicate that a keyboard key can be pressed to activate that menu item.

Before:

After (artistic rendition): Notice the underlines below the menu entries.

Possible fix suggestion:

• Add & before the key in the strings/translations, such as &Quit, &Refresh displays, etc.

Potentially relevant source code files:

• function setTrayMenu @ src/electron.js
• src/localization/en.json for English