xF2 Add-on [AH] Discord Widget 2.2.3

This release doesn't do much except a couple of things. The last release included some files I was testing on my development site by accident. This update removes them. I apologize about.

• Changed the add-on file path from ahDiscordWidget to AH\DiscordWidget to keep in line with my other add-ons. You may delete ahDiscordWidget after updating.
• Changed the add-on icon to Font Awesome 5.

This new release requires XenForo 2.1.x.