When chain is not connected useCosmWasmSigningClient returns undefined

[dalechyn]

graz/packages/graz/src/hooks/signingClients.ts

Line 152 in db50076

// Chain is not connected return undefined

I've been facing errors like this in fact not only in this hook but with others too.

Generally, queryFn must always return data or throw if certain conditions aren't met, which should be controlled at the query initiation logic by configuring the enabled property properly.