feat(distribution)!: custom fee allocation

[haiyizxx]

Description

This pr changes fee allocation to keep the community pool portion and burn the rest.

Todos

• Unit tests
• Manual tests
• Documentation
• Connect epics/issues
• Tag type of change
• Upgrade handler

Steps to Test

Expected Behaviour

Other Notes

[codecov]

Codecov Report

Attention: Patch coverage is 23.64395% with 549 lines in your changes missing coverage. Please review.

Project coverage is 39.10%. Comparing base (ee4809d) to head (431f854).

Files with missing lines	Patch %	Lines
x/distribution/types/mock/expected_keepers.go	15.97%	540 Missing and 7 partials ⚠️
x/distribution/keeper/keeper.go	95.65%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2231      +/-   ##
==========================================
- Coverage   39.45%   39.10%   -0.35%     
==========================================
  Files         375      379       +4     
  Lines       37417    38134     +717     
==========================================
+ Hits        14763    14913     +150     
- Misses      21706    22265     +559     
- Partials      948      956       +8     

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