feat: improve profanity filter

[Topener]

I swapped the profanity filter for a better one I recently developed based on the bad-words package.

The new package has several improvements:

• 150 times faster due to single regex vs for-loop for all profanities
• more known profanities

I also simplified the code, as the replaceProfanities function will simply return original value if there was nothing to replace, and the isProfane function calls the same logic, so improves the processing by another factor.

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[EyuCoder]

awesome