Fix rendering error on MyLiquidity page for accounts with unknown tokens

[dib542]

There is a rendering error on the MyLiquidity page if a user holds tokens that are not known

This appears to be partly a TypeScript issue: the token Type from the below code is Token not Token | undefined

      // allUserTokensList is type Token[]
      const tokenIndex = allUserTokensList.findIndex(matchTokenDenom(denom));
      const token = allUserTokensList[tokenIndex];

This is a long and divisive issue in TypeScript microsoft/TypeScript#13778 because flagged all items found by index can be problematic in many places that they are expected to be known. However as a resolution, a --noUncheckedIndexedAccess flag can be used to turn on checking for this.

[dib542]

This was fixed through better code practices in:

• Replace MyLiquidity detail page (Pro UI) with Basic UI actions on Home page #304

The issue in general has been moved to:

• Add strict check for undefined properties on an object #357