Fix url validation to disallow spaces

compendium-frontend/src/survey/SurveyContainerComponent.tsx

@@ -15,11 +15,15 @@ import { FunctionFactory } from "survey-core";
 function validateWebsiteUrl(params) {
     const value = params[0];
     const nonEmpty = params[1] || false;
-    
+
     if (!nonEmpty && (value === undefined || value == null)) {
         return true;
     }
     try {
+        if (value.includes(" ")) {
+            return false;
+        }
+
         const url = new URL(value);
         return !!url
     } catch (err) {
@@ -221,7 +225,7 @@ function SurveyContainerComponent({ loadFrom }) {
                 toast("Some fields are invalid, please correct them.");
                 return;
             }
-             
+
         },
         'releaseLock': async () => {
             const response = await fetch('/api/response/unlock/' + year + '/' + nren, { method: 'POST' });