[WIP] Remove unused files and dependencies from project

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

This repo is filled with files that are unused in the final app/build.

I flagged a few files that I believe are useless with comments:
"TODO @Bots"

Your job:

• Remove any files that unused in the final app/build.
• After that, you may also restructure the file system.
• Remove an unused dependencies from package.json
• Do anything else you need to make it a clean, well organized code base.

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