Theme alexiatweaks by [@alexia:thomcat.rocks]

• v1 Initial commit
• v2 New variables, primarily for alexiatweaks+bubblemuks
• v3 Changed things
• v4 terrible, terrible hack
• v5 immediately undid the hack it works like doodoo
• v6 Exclude threads from the reply-body selector
• v7 gave mentions a colour
• v9 move send status FURTHER to the left.
• v10 moved this to bubblemuks-specific theme
• v8 Move event-send-status over a bit to make it more visible + aligned
• v11 Changed things
• v12 Changed things
• v13 Changed things