fix: run validateBasic for vote before AddVote

[jaeseung-bae]

Description

• (audit fix)Add missing validateBasic before AddVote
  • referenced implementation(https://github.com/Finschia/cometbft/blob/d93ba1add2bdea62cf4aeec3e11a998855c1a240/types/block.go#L1074-L1077)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.59%. Comparing base (e1be3c4) to head (6b462da).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #770      +/-   ##
==========================================
+ Coverage   66.52%   66.59%   +0.07%     
==========================================
  Files         285      285              
  Lines       37917    37920       +3     
==========================================
+ Hits        25225    25254      +29     
+ Misses      10885    10862      -23     
+ Partials     1807     1804       -3     

Files	Coverage Δ
types/block.go	79.65% <100.00%> (+0.07%)	⬆️

... and 13 files with indirect coverage changes