Improve errors reporting

virtweb_frontend/src/routes/EditVMRoute.tsx

@@ -23,7 +23,7 @@ export function CreateVMRoute(): React.ReactElement {
       navigate(v.ViewURL);
     } catch (e) {
       console.error(e);
-      alert("Failed to create VM!");
+      alert(`Failed to create VM!\n${e}`);
     }
   };