Fix tiny bug where list command failed when given no backend resources.

Author: taeold

src/commands/frameworks-backends-list.ts

@@ -27,10 +27,10 @@ export const command = new Command("backends:list")
       style: { head: ["green"] },
     });
     table.colWidths = COLUMN_LENGTH;
-    const backendsList: gcp.ListBackendsResponse[] = [];
+    const backendsList: gcp.ListBackendsResponse["backends"] = [];
     try {
       const backendsPerRegion = await gcp.listBackends(projectId, location);
-      backendsList.push(backendsPerRegion);
+      backendsList.push(...backendsPerRegion.backends);
       populateTable(backendsPerRegion, location, table);
 
       logger.info();