Fix some emoji's resizing incorrectly on hover

[HanPrower]

Fixes this issue: https://github.com/Jiiks/BetterDiscordApp/issues/360

[HanPrower]

Just realised this is for the deprecated branch and that v2 doesn't seem to have this bit of CSS at all, so I'll close this.

[Inve1951]

don't mind v2
dp3 will be the next BD version

[HanPrower]

I see... it's a very messy repo isn't it ^.^;;

Well this issue doesn't seem relevant there either, so ho-hum.