More channel & user management features

• I’ve been pretty busy this past week and haven’t been able to spend a lot of time on Codeliver or Stardance in general until now. Hopefully I’ll have more time the rest of the summer do get more hours and actually finish my projects
• In this update, I added channel settings, some channel ownership and user management features for each channel, as well as the ability to delete channels
• When you click on the new channel settings icon in a channel (that only shows if you’re the owner), a settings modal pops up, currently only with 2 options, transfer ownership and delete channel
• When you click on transfer ownership, another modal pops up where you can search for a user already added to the channel, select them, and transfer channel ownership after confirmation
• If you try to leave a channel when you’re its owner, Codeliver prompts you to transfer the ownership to someone else first to avoid orphaned relations in the database
• When you press on delete channel, a confirmation modal pops up and the channel and all its data will be deleted after confirmation
• When you click on browse users, your permissions are also displayed and you are able to see who the owner is
• Updated styling and navigation
• Updated API endpoints
• Updated README