fix(bridge-ui): return true if the token address is found on dest chain to send correct gas limit

[cyberhorsey]

• fixes network switching by removing the extraneous deffered / switching refactor logic, which doesnt seem to be necessary, and was preventing the page from actually switching the network. This allowed for users to send transactions on wrong networks, and the page to be out of sync with the injected wallet provider.
• properly detects if a token is bridged already or not, reducing gas limit, which reduces processing fee.

[codecov]

Codecov Report

Merging #14446 (f104138) into main (1257568) will decrease coverage by 0.22%.
Report is 2 commits behind head on main.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main   #14446      +/-   ##
==========================================
- Coverage   65.53%   65.31%   -0.22%     
==========================================
  Files          90       89       -1     
  Lines        3160     3140      -20     
  Branches      113      109       -4     
==========================================
- Hits         2071     2051      -20     
  Misses        963      963              
  Partials      126      126              

Flag	Coverage Δ		*Carryforward flag
bridge-ui	93.91% <83.33%> (-0.14%)	⬇️
eventindexer	44.18% <ø> (ø)		Carriedforward from 72e225d
relayer	59.19% <ø> (ø)		Carriedforward from 72e225d

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

Files Changed	Coverage Δ
packages/bridge-ui/src/utils/switchNetwork.ts	100.00% <ø> (ø)
...e-ui/src/utils/checkIfTokenIsDeployedCrossChain.ts	91.66% <83.33%> (+0.36%)	⬆️

... and 1 file with indirect coverage changes

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[dantaik]

@xiaodino please also review.