add error notification next to send button

components/wizard/index.tsx

@@ -73,11 +73,15 @@ function WizardInternal() {
         <DateSelect />
         <Reason />
         <Contact />
-        <div>{postDataError}</div>
         <div>
           <button type="submit" disabled={postData} className="btn btn-blue">
             {postData ? 'Speichern...' : 'Absenden'}
           </button>
+          {postDataError && (
+            <div className="error-message">
+              <strong>Error:</strong> {postDataError}
+            </div>
+          )}
         </div>
       </form>
     </>