fix(bridge-ui): ios dropdown a11y and horizontal padding

[dionysuzx]

summary

• this improves a11y for ios, where dropdown wasn't working.
• in another PR i can reduce the image size of the logo and make the container more sensible, but this seems like an easy improvement.
• switches swap icon for left-right icon (from heroicons)

screenshot

[codecov]

Codecov Report

Merging #425 (10fada1) into main (d42b953) will increase coverage by 0.15%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #425      +/-   ##
==========================================
+ Coverage   65.02%   65.18%   +0.15%     
==========================================
  Files          96       96              
  Lines        2605     2605              
  Branches      313      313              
==========================================
+ Hits         1694     1698       +4     
+ Misses        844      840       -4     
  Partials       67       67              

Flag	Coverage Δ		*Carryforward flag
bridge-ui	100.00% <ø> (ø)
protocol	58.54% <ø> (+0.28%)	⬆️	Carriedforward from 37e9bb6
relayer	68.34% <ø> (ø)		Carriedforward from 37e9bb6
ui	100.00% <ø> (ø)		Carriedforward from 37e9bb6

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

Impacted Files	Coverage Δ
...ges/protocol/contracts/libs/LibAnchorSignature.sol	89.47% <0.00%> (-10.53%)	⬇️
...es/protocol/contracts/thirdparty/LibMerkleTrie.sol	90.36% <0.00%> (+7.22%)	⬆️

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