Bluesky Missing functions par Queza2

Adds a Draft and Schedule Post function to Bluesky.

Your last written message when making a post in bluesky will automatically be pasted when you open a new post message so you can continue writing, that's the draft function.

For the schedule post a date input and button are added to the post screen. You enter the date and time you want the post to send and press the button to execute. As long as you keep an instance of bluesky open on your desktop in the browser with this addon the post will be send at the marked time.
You can make as many of these scheduled posts as you want.
If you clear cookies that removes the schedules