Mac keyboard shortcut Option (⌥) + Left

[jstastny]

Describe the bug
On Mac when writing text, the default action of Option + Left keyboard shortcut is to the beginning of the previous word. See https://support.apple.com/en-us/HT201236

Option–Left Arrow: Move the insertion point to the beginning of the previous word.

Similarly with the Option + Right, which jumps to the next word.

However, teams-for-linux uses this shortcut for back and forward history navigation. It seems that the ALT defined in

teams-for-linux/app/browser/tools/shortcuts.js

Lines 34 to 35 in dd2fe2f

	'ALT_ArrowLeft': () => window.history.back(),
	'ALT_ArrowRight': () => window.history.forward()

is translated as Option on Mac, which causes this.

This is very annoying, as it disallows jumping by words when editing message, which is something pretty common and something stored pretty deep in my muscle memory.

To Reproduce
Steps to reproduce the behavior:

1. Start writing message, write multiple words
2. Use Option + left keyboard shortcut
3. Expect to jump to beginning of previous word, but you are navigated to the previous screen (message, etc) instead.

Expected behavior
Expect to jump to beginning of previous word instead of back navigation.

Desktop (please complete the following information):

• OS: MacOS
• Installation package https://github.com/IsmaelMartinez/teams-for-linux/releases/download/v1.4.10/teams-for-linux-1.4.10-mac.zip
• Version 1.4.10