263 go over smart contracts functions and review things

[SamBorisov]

Polish contracts, do not change any logic.
Added comments in the ticket about the review and potential fixes!

[coveralls]

Pull Request Test Coverage Report for Build 11680693806

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 79 of 83 (95.18%) changed or added relevant lines in 17 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 88.596%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
contracts/HydraDelegation/modules/DelegationPoolLib/DelegationPoolLib.sol	30	31	96.77%
contracts/HydraDelegation/modules/VestedDelegation/VestedDelegation.sol	0	1	0.0%
contracts/HydraStaking/modules/VestedStaking/VestedStaking.sol	13	14	92.86%
contracts/common/Vesting/Vesting.sol	2	3	66.67%

Totals
Change from base Build 11590313309:	0.1%
Covered Lines:	1198
Relevant Lines:	1278

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💛 - Coveralls