Remove deta package from the Discord Bot

[Awesome-E]

• Creates a drop-in wrapper object for all server-settings DB actions. This is different from the API's approach since the bot primarily relies only on one collection.
• Updated tests to mock the MongoDB functions instead of Deta Base functions
• You will need to add the MONGO_URL env variable (same as SDR)

PLEASE TEST THE DISCORD BOT LOCALLY AND TRY TO BREAK IT

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I might rename mock-deta.js and delete link-scanner.js after review

[Anonymouseyy]

I wasn't able to break it 👍

[anthonyj33]

LGTM