feat(protocol): multiple improvements & bug fixes

[dantaik]

• Improve bridged token name and symbol override
• Update eventindexer post hooks
• Fix a bug in ERC20Vault
• Make governor upgradable
• Use RC1967Proxy instead of TransparentUpgradeableProxy
• Split the original EssentialContract into an OwnerUUPSUpgradable.sol and a new EssentialContract
• Removed all ProxiedXXXContract as all owner contracts must be used behind a proxy. This is enforced by calling _disableInitializers in constructor.
• Simplified test imports to make it more readable.
• Add airdrop contracts
• Improve and test guardian prove
• Allow changing Bridged ERC20 token on dest chain

[vercel]

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Name	Status	Preview	Updated (UTC)
bridge-ui-v2-a5	✅ Ready (Inspect)	Visit Preview	Dec 2, 2023 3:01pm

1 Ignored Deployment

Name	Status	Preview	Updated (UTC)
bridge-ui-v2-internal	⬜️ Ignored (Inspect)	Visit Preview	Dec 2, 2023 3:01pm

[codecov]

Codecov Report

Attention: 370 lines in your changes are missing coverage. Please review.

Comparison is base (42fee21) 27.97% compared to head (729e155) 27.42%.

Files	Patch %	Lines
packages/eventindexer/generator/generator.go	0.00%	138 Missing ⚠️
.../eventindexer/indexer/save_block_assigned_event.go	0.00%	103 Missing ⚠️
packages/eventindexer/indexer/subscribe.go	0.00%	77 Missing ⚠️
packages/eventindexer/repo/stat.go	47.72%	21 Missing and 2 partials ⚠️
packages/eventindexer/indexer/filter.go	0.00%	11 Missing ⚠️
packages/eventindexer/indexer/indexer.go	0.00%	9 Missing ⚠️
packages/eventindexer/http/get_chart_by_task.go	0.00%	3 Missing ⚠️
packages/eventindexer/repo/event.go	0.00%	2 Missing and 1 partial ⚠️
...entindexer/indexer/save_transition_proved_event.go	0.00%	2 Missing ⚠️
packages/eventindexer/http/get_stats.go	94.73%	1 Missing ⚠️

Additional details and impacted files

@@                      Coverage Diff                       @@
##           based_contestable_zkrollup   #15255      +/-   ##
==============================================================
- Coverage                       27.97%   27.42%   -0.56%     
==============================================================
  Files                              76       77       +1     
  Lines                            4740     4923     +183     
==============================================================
+ Hits                             1326     1350      +24     
- Misses                           3267     3426     +159     
  Partials                          147      147              

Flag	Coverage Δ
eventindexer	18.37% <9.97%> (-0.36%)	⬇️
relayer	39.98% <ø> (ø)

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