Birb extension

A simple extension that replaces the ugly X logo with the modern twitter bird logo. Also fixes and replace the "/X" with "/Twitter" in the tab title.

To-do:

• Replace the X with blue bird on top left corner
• Replace the "/X" with "/Twitter"
• Get rid of the "Premium" section lol
• Set a flag to turn on/off the Premium nav section hiding
• Make an exception for "Lights Out" theme and add the black and white bird instead of the blue bird (HELP HOW AM I SUPPOSED TO FIND THAT OUT 😭💀) (it was pretty easy to find this out lol)

Optionals:-

• Custom "CSS" injection
• Custom "Logo" injection