LBRY Debian / Apt / Ubuntu Install Cleanup (or switch to snap?)

There are several issues with the LBRY experience in the Ubuntu Software Center:

• An extraneous version appears from the "SnapStore", v0.14
• No screenshot appears for the app
• The license shows as proprietary, when it is actually MIT

I'm guessing the bottom two are fixed by setting correct metadata... somewhere.

Acceptance Criteria

Definition of Done

• Tested against acceptance criteria
• Tested against the assumptions of the user story
• The project builds without errors
• Unit tests are written and passing
• Tests on devices/browsers listed in the issue have passed
• QA performed & issues resolved
• Refactoring completed
• Any configuration or build changes documented
• Documentation updated
• Peer Code Review performed