Fix bug that blocked new service worker installation

Previous service workers have been running fine, but new service workers
weren't able to install due to this issue, blocking offline usage for
new users.

Author: pimterry

src/services/server-api.ts

@@ -36,7 +36,9 @@ export const announceServerReady = () => serverReady.resolve();
 export const waitUntilServerReady = () => serverReady.promise;
 
 const apiClient: Promise<GraphQLApiClient | RestApiClient> = authTokenPromise.then(async (authToken) => {
-    await waitUntilServerReady();
+    // Delay checking, just to avoid spamming requests that we know won't work. Doesn't work
+    // in the SW, which doesn't get a server-ready ping, and is delayed quite a while anyway.
+    if (!RUNNING_IN_WORKER) await waitUntilServerReady();
 
     const restClient = new RestApiClient(authToken);
     const graphQLClient = new GraphQLApiClient(authToken);