Toggl-button: Microsoft Edge Extension

[nicktoggl]

As title suggests, some more frequent user requests for Edge and Safari support.

[jpowell]

Safari request is dup of #635

[benmccallum]

I'm on Chromium-based Edge now and installing the extension from the Google WebStore works in that I get the button next the address bar, but I don't get the in-page button in JIRA.

Since you guys haven't implemented the extension for the old standalone Edge, I imagine it wouldn't be too hard to fix this since it's Chromium under the hood.

[tcrammond]

Hey @benmccallum, just wanted to double check if you've enabled the JIRA integrations from within Toggl Button's settings after installing it in Edge? We haven't declared official support for the new Edge browser yet, but as you said hopefully it won't be too difficult to iron out any kinks!

[benmccallum]

Oh man... sorry @tcrammond ! I didn't even realise that was a thing. I guess I'd set it up in Chrome so long ago I didn't realise. All good now and it appears. Cheers!