Fix cosmos limit big integer range

[masih]

Ports over the work originally done in sei-protocol/sei-cosmos#594.

Relates to:

• Migrate sei-cosmos into sei-chain as mono repo #2408

[codecov]

Codecov Report

❌ Patch coverage is 83.63636% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 36.66%. Comparing base (06a4e24) to head (d5468fc).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sei-cosmos/types/decimal.go	83.63%	7 Missing and 2 partials ⚠️

❌ Your project status has failed because the head coverage (36.66%) is below the target coverage (60.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2415      +/-   ##
==========================================
+ Coverage   36.64%   36.66%   +0.01%     
==========================================
  Files        1165     1165              
  Lines      104350   104355       +5     
==========================================
+ Hits        38242    38263      +21     
+ Misses      62848    62841       -7     
+ Partials     3260     3251       -9     

Files with missing lines	Coverage Δ
sei-cosmos/types/decimal.go	67.30% <83.63%> (+2.71%)	⬆️

... and 7 files with indirect coverage changes

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