Added title to logout dialog
Renamed ConversationsActivity to MainActivity

Main will be the main activity where people interact with the app.
Much like what the name signifies
Created tabs in Main Activity

These tabs will keep track of both friends and conversations
Fixed formatting in Manifest

The Manifest file had some borked formatting, which has been rectified.
Changed theme color scheme

Color scheme is now purple. Purple was chosen during an informal vote
on Facebook. You can blame my friends if you don't like it. Tough
cookies, I think it looks awesome.
Merge branch 'styles' into main
Merge branch 'main' into develop
Merge branch 'develop'