refactor(NameRegistry): registrations last for one year

[varunsrin]

Registering an fname now registers it for 365 days instead of registering it until the end of the calendar year. The renewal period is now 30 days, instead of 31 days. See this discussion for the rationale behind the changes.

The failing CI is due to a false positive code coverage check, which can be ignored. No uncovered lines of code were added by this PR but % coverage has dropped to due to removal of code and tests.

Notably, this change also made our contract a lot leaner:

• Contract size is now 1.08 kb smaller
• register is 8433 gas cheaper
• bid is 6907 gas cheaper
• trustedRegister is 717 gas cheaper
• renew is 717 gas cheaper

[codecov]

Codecov Report

Base: 85.61% // Head: 84.61% // Decreases project coverage by -0.99% ⚠️

Coverage data is based on head (875f95a) compared to base (1c6bfac).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #125      +/-   ##
==========================================
- Coverage   85.61%   84.61%   -1.00%     
==========================================
  Files           8        8              
  Lines         285      260      -25     
  Branches       77       74       -3     
==========================================
- Hits          244      220      -24     
+ Misses         39       38       -1     
  Partials        2        2              

Impacted Files	Coverage Δ
test/NameRegistryUpgrade.t.sol	77.77% <ø> (-11.70%)	⬇️
src/NameRegistry.sol	91.02% <100.00%> (-0.21%)	⬇️

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