Test improvements

[hammeiam]

• Wait for user balance to be available before continuing some tests
• Don't fail if optional element doesn't exist

[codecov[bot]]

Codecov Report

Merging #1302 (d6a5483) into master (be847e5) will not change coverage. The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1302   +/-   ##
======================================
  Coverage    9.39%   9.39%           
======================================
  Files         182     182           
  Lines        6738    6738           
  Branches     2204    2204           
======================================
  Hits          633     633           
+ Misses       6105    6103    -2     
- Partials        0       2    +2     

Impacted Files	Coverage Δ
src/components/TokenInput.tsx	0.00% <ø> (ø)
src/hooks/useWithdrawFormState.ts	0.00% <0.00%> (ø)
src/pages/CreatePool/CreatePoolDialog.tsx	0.00% <0.00%> (ø)

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