React UI: Add /tsdb-status to React-handled routes (#6313)

Signed-off-by: Julius Volz <julius.volz@gmail.com>

web/ui/react-app/src/App.tsx

@@ -15,6 +15,10 @@ const App: FC<PathPrefixProps> = ({ pathPrefix }) => {
         <Router basepath={`${pathPrefix}/new`}>
           <Redirect from="/" to={`${pathPrefix}/new/graph`} />
 
+          {/*
+            NOTE: Any route added here needs to also be added to the list of
+            React-handled router paths ("reactRouterPaths") in /web/web.go.
+          */}
           <PanelList path="/graph" pathPrefix={pathPrefix} />
           <Alerts path="/alerts" pathPrefix={pathPrefix} />
           <Config path="/config" pathPrefix={pathPrefix} />

web/web.go

@@ -84,6 +84,7 @@ var (
 		"/service-discovery",
 		"/status",
 		"/targets",
+		"/tsdb-status",
 		"/version",
 	}
 )