Only send unlocked tokens upon address association

[codchen]

Describe your changes and provide context

It is possible for a cast address to hold locked tokens since anyone (e.g. an attacker) can create vesting account for anyone before the account is first referenced on chain. So when consolidating balances we should only transfer the unlocked part. Any locked tokens under cast addresses will be frozen, since there is no real use case for creating vesting account for cast addresses.

Testing performed to validate your change

unit tests

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 60.66%. Comparing base (e8e4b3b) to head (ac26511).
Report is 86 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1737      +/-   ##
==========================================
- Coverage   61.64%   60.66%   -0.99%     
==========================================
  Files         365      372       +7     
  Lines       26178    27024     +846     
==========================================
+ Hits        16138    16393     +255     
- Misses       8967     9532     +565     
- Partials     1073     1099      +26     

Files	Coverage Δ
x/evm/ante/preprocess.go	75.17% <85.71%> (-2.52%)	⬇️

... and 39 files with indirect coverage changes