Restrict queries to hardcoded channels/groups

[vcarl]

I had begun replacing this with something generalized, but didn't finish it! For this grading session in Reactiflux, let's use hardcoded stuff again

[what-the-diff]

PR Summary

• Modification on Comment Labels for Channel Categories
  The update removed the comment block and introduced an ALLOWED_CATEGORIES array that triggers actions allowed in particular channel categories.

• Establishment of ALLOWED_CHANNELS Definition
  The implementation included replacing the prior comment with an actual array definition which is ALLOWED_CHANNELS.

• Activation of Filtering Logic Inside getUserMessageAnalytics
  The function getUserMessageAnalytics now enables filtering by taking into account the ALLOWED_CHANNELS and ALLOWED_CATEGORIES. This has been applied to multiple query sections within the function.

• Inclusion of Logging System
  The new update incorporates a logging setup. Now, a console log displays the complete SQL query.

• Improvement in Channel Filtering In getTopParticipants Function
  Significant changes are made to the getTopParticipants function. Now the base query applies the new filtering rule and the old commented logic has been discarded.