Chatterino2: Replace twitch emotes with dark borders with dark mode ones

[TranRed]

Replace scuffed emotes with white outlines with the ones used in chatterino 1. (couldn't find existing issues with search terms: "darkmode" or "emote")

[fourtf]

This is the worst issue title that I have seen (probably in my entire life).

[gempir]

I think what TranRed want here is the FFZ Feature of improved Global Emotes.

And I agree that they are nicer

[fourtf]

This issue is out of scope of the Chatterino project.