refactor: rename stateHash to stateRoot

[sebastijankuzner]

Summary

Replace remaining stateHash to stateRoot.

Checklist

• Ready to be merged

[codecov]

Codecov Report

Attention: Patch coverage is 67.85714% with 9 lines in your changes missing coverage. Please review.

Project coverage is 50.47%. Comparing base (4de3046) to head (0e20b91).
Report is 16 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/evm/bindings/src/lib.rs	0.00%	7 Missing ⚠️
packages/crypto-block/source/index.ts	0.00%	1 Missing ⚠️
packages/evm/core/src/state_root.rs	75.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #978      +/-   ##
===========================================
+ Coverage    50.25%   50.47%   +0.22%     
===========================================
  Files         1112     1109       -3     
  Lines        60076    60007      -69     
  Branches      1458     1466       +8     
===========================================
+ Hits         30190    30289      +99     
+ Misses       29848    29681     -167     
+ Partials        38       37       -1     

Flag	Coverage Δ
contracts	98.63% <ø> (-0.86%)	⬇️
packages	50.12% <67.85%> (+0.19%)	⬆️

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