update migrations plugin with changes from migrate-dashboard

[levity]

No description provided.

[levity]

this creates a conflict with #231; sorry about that @jparklev

[codecov]

Codecov Report

Merging #233 into dev will decrease coverage by 1.38%.
The diff coverage is 39.75%.

@@            Coverage Diff             @@
##              dev     #233      +/-   ##
==========================================
- Coverage   86.35%   84.96%   -1.39%     
==========================================
  Files         128      130       +2     
  Lines        3737     3812      +75     
==========================================
+ Hits         3227     3239      +12     
- Misses        510      573      +63     

Impacted Files	Coverage Δ
...ages/dai-plugin-migrations/src/MigrationService.js	100.00% <ø> (ø)
packages/dai-plugin-migrations/src/constants.js	100.00% <ø> (ø)
...ions/src/migrations/GlobalSettlementDaiRedeemer.js	14.63% <0.00%> (-85.37%)	⬇️
...ugin-migrations/src/migrations/SingleToMultiCdp.js	73.01% <25.00%> (-24.86%)	⬇️
...src/migrations/GlobalSettlementCollateralClaims.js	65.71% <52.00%> (-34.29%)	⬇️
...tions/src/migrations/GlobalSettlementSavingsDai.js	100.00% <100.00%> (ø)
...ugin-migrations/src/migrations/RedeemCollateral.js	100.00% <100.00%> (ø)
.../dai-plugin-migrations/src/migrations/RedeemSai.js	100.00% <100.00%> (ø)
... and 2 more

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[levity]

@ethanbennett i wasn't 100% sure i merged the changes here correctly

[ethanbennett]

@levity yep, just tested it and it works 👍