add fetch to make request

src/admin.js

@@ -21,9 +21,19 @@ const selector = '#side-menu-message'
 
 const userConfig = (name, value, callbacks) => {
     const url = OC.generateUrl('/apps/side_menu/personalSetting/valueSet')
+    const formData = new FormData()
+    formData.append('name', name)
+    formData.append('value', value)
 
-    $.post(url, {name: name, value: value}, callbacks.success)
-        .fail(callbacks.error)
+    fetch(url, {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/x-www-form-urlencoded',
+        },
+        body: formData
+    })
+    .then(callbacks.success)
+    .catch(callbacks.error)
 }
 
 const appConfig = (name, value, callbacks) => {