Update addon feedback link

I'm going to try this for a bit and we'll see what, if anything, happens

src/addons/settings/settings.jsx

@@ -1052,7 +1052,7 @@ class AddonSettingsComponent extends React.Component {
                             />
                         </div>
                         <a
-                            href="https://scratch.mit.edu/users/World_Languages/#comments"
+                            href="https://scratch.mit.edu/users/GarboMuffin/#comments"
                             target="_blank"
                             rel="noreferrer"
                             className={styles.feedbackButtonOuter}