Move service status bar to global chrome, fixed just below navbar (admin-only)

frontend/src/App.js

@@ -5,6 +5,7 @@ import { ProfileProvider, useProfile } from "./lib/profile";
 import ProtectedRoute from "./components/ProtectedRoute";
 import Navbar from "./components/Navbar";
 import GrainOverlay from "./components/GrainOverlay";
+import ServiceStatus from "./components/ServiceStatus";
 import Login from "./pages/Login";
 import Register from "./pages/Register";
 import Browse from "./pages/Browse";
@@ -52,6 +53,7 @@ const Shell = ({ children }) => {
   return (
     <>
       {!hideChrome && user && active && <Navbar />}
+      {!hideChrome && user?.is_admin && active && <ServiceStatus />}
       {children}
       <GrainOverlay />
     </>