[FIX] cryptoassets exchange erc20 & coins import names

[ghost]

Import names seems to be swapped in packages/cryptoassets/src/exchange.ts between coins and erc20

[codecov]

Codecov Report

Merging #752 (d7cc916) into master (6a77967) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #752   +/-   ##
=======================================
  Coverage   43.54%   43.54%           
=======================================
  Files          80       80           
  Lines        4818     4818           
  Branches      791      791           
=======================================
  Hits         2098     2098           
  Misses       2703     2703           
  Partials       17       17           

Impacted Files	Coverage Δ
packages/cryptoassets/src/exchange.ts	0.00% <0.00%> (ø)

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