Made messaging fully functional ( all default styles)

[abookout]

Description

• Also snuck in pagination middleware among other things needed to finish this task
• Note that the threads thing on the left looks janky, that's because of weird test data in the database

Closes #75, #94, #119

How to Test

Checklist

• [ x ] The code includes tests if relevant
• [ x ] I have actually self-reviewed my changes and done QA

Screenshots

Mobile

Desktop

[abookout]

This PR is a nightmare, I'm going to close it and make a new one which isn't super rushed so y'all know not to spend any more time reviewing it.