fix: EIP-712 fixes

[0xrajath]

Motivation:

EIP-712 fixes and missing natspec.

Modifications:

• EIP-712 fixes
• Missing natspec and wrong natspec corrected.

Result:

Correct EIP-712 hashes

[github-actions]

Coverage after merging rajath/eip-712-fixes into main will be

91.63%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src/token-voting
LlamaERC20TokenActionCreator.sol	87.50%	50%	100%	100%	43–44
LlamaERC20TokenCaster.sol	92.31%	50%	100%	100%	43
LlamaERC721TokenActionCreator.sol	84.21%	50%	100%	100%	43, 45–46
LlamaERC721TokenCaster.sol	87.50%	50%	100%	100%	43, 45
LlamaTokenActionCreator.sol	84.62%	68.18%	85.71%	91.67%	125–126, 271, 271–274, 274, 274, 280–281
LlamaTokenCaster.sol	85.97%	83.33%	82.14%	88.43%	201–202, 361, 365, 365, 365–367, 367, 367–371, 373, 448, 448–451, 451, 451, 457–458, 463–464
LlamaTokenVotingFactory.sol	100%	100%	100%	100%