frontend: fix repeatStreamFunc for list requests

`errCb` parameter is the 3rd argument of `get` function returned by `singleApiFactory`, whereas it's only the 2nd argument of `list`.
This causes `repeatStreamFunc` to misbehave for `list` calls because the error callback index is hardcoded to `2`.

Signed-off-by: msuret <11944422+msuret@users.noreply.github.com>

frontend/src/lib/k8s/apiProxy.ts

@@ -496,7 +496,7 @@ async function repeatStreamFunc(
   ) {
     const endpoint = apiEndpoints[endpointIndex];
     const fullArgs = [...args];
-    let errCbIndex = 2;
+    let errCbIndex = funcName == 'get' ? 2 : 1;
     if (endpoint.isNamespaced) {
       ++errCbIndex;
     }