Clean up

[king-kloy]

This PR setups for the backend. It consists of:

• [x] Setup for Firebase SDK

• [x] Fix asset bath-24.png

• [x] Removed unused imports and import used ones

[king-kloy]

@janim2 kindly review this and merge with main so that @ekyeremeh7 can pull and start with the firebase

[janim2]

Completed my review and merged the files to main