Add visual feedback to save button, add user agent

data/src/index.html

@@ -62,6 +62,7 @@
             </div>
             <footer>
               <button type="submit" class="btn btn-primary">Show Text</button>
+              <button type="button" class="btn btn-secondary" id="restartBtn">Restart</button>
             </footer>
           </form>
           <hr>
@@ -186,7 +187,7 @@
             <h3>Screens</h3>
             <div id="outputScreens"></div>
             <button type="submit" class="btn btn-secondary">Reset</button>
-            <button type="submit" class="btn btn-primary">Save</button>
+            <button type="submit" class="btn btn-primary" id="saveSettingsBtn">Save</button>
           </form>
 
         </div>

data/src/js/script.ts

@@ -80,11 +80,17 @@ settingsForm.onsubmit = (event) => {
             method: "post"
         }).then(() => {
             console.log('Submitted');
+            document.getElementById('saveSettingsBtn')?.classList.add('btn-success');
         });
 
     return false;
 }
 
+document.getElementById('restartBtn').onclick = (event) => {
+    fetch('/api/restart');
+    return false;
+}
+
 
 var ledsForm = document.querySelector('#ledsForm');
 ledsForm.onsubmit = (event) => {