chore(bridge-ui): move maps out of the store

[jscriptcoder]

Moving maps into their own domain as initialized services when they are imported. The benefits of doing so is to reduce initialization code in App.svelte, which is quite cluttered, as well as getting them out of the stores since they're not part of the state. Less code, less maintenance, easier to reason about and less prone to errors.

I've increased a bit the coverage since it fell a bit bellowed the threshold after these changes.

[codecov]

Codecov Report

Merging #13349 (50c2e69) into main (a046fa3) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main   #13349      +/-   ##
==========================================
+ Coverage   36.21%   36.23%   +0.01%     
==========================================
  Files         123      124       +1     
  Lines        3780     3778       -2     
  Branches      520      520              
==========================================
  Hits         1369     1369              
+ Misses       2320     2318       -2     
  Partials       91       91              

Flag	Coverage Δ		*Carryforward flag
bridge-ui	94.67% <100.00%> (+0.44%)	⬆️
protocol	0.00% <ø> (ø)		Carriedforward from dd66403
relayer	62.28% <ø> (ø)		Carriedforward from dd66403
ui	100.00% <ø> (ø)		Carriedforward from dd66403

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
packages/bridge-ui/src/domain/chain.ts	100.00% <ø> (ø)
packages/bridge-ui/src/bridge/ERC20Bridge.ts	88.88% <100.00%> (ø)
packages/bridge-ui/src/bridge/ETHBridge.ts	87.50% <100.00%> (ø)
packages/bridge-ui/src/chain/chains.ts	100.00% <100.00%> (ø)
packages/bridge-ui/src/constants/envVars.ts	100.00% <100.00%> (ø)
packages/bridge-ui/src/proof/ProofService.ts	100.00% <100.00%> (ø)
packages/bridge-ui/src/provider/providers.ts	100.00% <100.00%> (ø)
packages/bridge-ui/src/storage/StorageService.ts	95.87% <100.00%> (+1.99%)	⬆️
...ages/bridge-ui/src/utils/recommendProcessingFee.ts	92.85% <100.00%> (-0.70%)	⬇️
packages/bridge-ui/src/vault/tokenVaults.ts	100.00% <100.00%> (ø)

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