Migrate mee6 functionality

[ReenigneArcher]

Describe the Bug

We would like to remove mee6 from our server. To do this there are a few functions that need to be ported over to our own bot.

• leaderboard/levels ... we can migrate existing leaderboard from the mee6 api: https://mee6.xyz/api/plugins/levels/leaderboard/804382334370578482?page=1
• reaction roles

Expected Behavior

No response

Additional Context

No response

[LizardByte-bot]

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