Added missing dependency array to useEffect

Author: Gimleux

webapp_frontend/src/components/App.tsx

@@ -10,16 +10,18 @@ function App(): ReactElement {
         Promise.resolve(setBackendPort())
             .then((backendPort:string) => {
                 console.log("[APP] Backend-Port = " + backendPort)
+                // eslint-disable-next-line react-hooks/exhaustive-deps
                 callInitialBackendRequests()
             })
             .catch((error:any) => {
                 alert("Error: Problems with backend.cfg - " + error)
             })
-    });
+    },[]);
 
     function callInitialBackendRequests():void {
         updateVariables()
     }
+
     function updateVariables(): void {
         Promise.all([callBackendHealth()])
             .then(([backendHealthData]) => {