Feat/sixty forty reward split

[vlady-kotsev]

Detailed description:

• Add reward split functionality based on validators/treasury ratio
• Update unit tests

[codecov]

Codecov Report

Attention: Patch coverage is 50.76923% with 32 lines in your changes missing coverage. Please review.

Project coverage is 64.44%. Comparing base (b96b334) to head (cd86074).
Report is 6 commits behind head on main.

❗ Current head cd86074 differs from pull request most recent head d9e3e8e

Please upload reports for the commit d9e3e8e to get more accurate results.

Files	Patch %	Lines
app/services/fee/distributor/distributor.go	50.00%	17 Missing ⚠️
.../process/handler/read-only/fee-transfer/handler.go	0.00%	7 Missing ⚠️
app/process/handler/read-only/fee/handler.go	42.85%	3 Missing and 1 partial ⚠️
app/process/handler/read-only/nft/fee/handler.go	42.85%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #916      +/-   ##
==========================================
+ Coverage   64.29%   64.44%   +0.14%     
==========================================
  Files          86       86              
  Lines        6716     6752      +36     
==========================================
+ Hits         4318     4351      +33     
- Misses       2184     2185       +1     
- Partials      214      216       +2     

Flag	Coverage Δ
unittests	64.44% <50.76%> (+0.14%)	⬆️

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