…ding of ui-elements

Draft: load translations when loading remote modules

Note: QueryClientProvider must be explicitly shared
See https://tanstack.com/query/v3/docs/react/reference/QueryClientProvider

Refs STCOR-718, STRIPES-861

Load remote icons, and clean up the translation loading a bit; it was
still very much in draft form, and still is, but at least it doesn't
throw lint errors everywhere now.

Refs STCOR-725, STRIPES-861

Correctly set each apps' localized `displayName` attribute. It isn't
totally clear to me why this doesn't work via `formattedMessage`. It
seems that something is happening asynchronously that we don't realize
is async, and therefore don't await, and then we end up calling
`formatMessage()` before the translations have been pushed to the store.
In any case, pulling the value straight from the translations array
works fine.

Refs STCOR-718

Correctly handle multiple icons per application.

Refs STCOR-725