[TASK] Use „login“ as event label (instead of „click“)

Related: T3DEMO-297

src/extensions/site_t3demo/Resources/Private/Plugins/Felogin/Templates/Login/Login.html

@@ -54,7 +54,8 @@
         </div>
 
         <div class="b_login__row b_login__row--submit">
-            <f:form.submit value="{f:translate(key: 'login.login', extensionName: 'site_t3demo')}" name="submit" class="b_button b_button--login-submit umami--click--frontend-login"/>
+            <f:form.submit value="{f:translate(key: 'login.login', extensionName: 'site_t3demo')}" name="submit" class="b_button b_button--login-submit"
+						onclick="umami.trackEvent('Frontend Login', 'login');"/>
         </div>
 
         <div class="b_login__container b_login__container--hidden">