Fix all failing specs

spec/acceptance_steps/users/side_menu_steps.rb

@@ -1,6 +1,5 @@
 step "the user opens the side menu" do
-  page.execute_script %|$('.toggle-side-menu').click()|
-  sleep 1
+  js_click '.toggle-side-menu'
 end
 
 step "the user opens the side menu again" do
@@ -8,8 +7,7 @@ step "the user opens the side menu again" do
 end
 
 step "the user clicks on the lists link in the side menu" do
-  page.execute_script %|$('.side-menu-lists').click()|
-  sleep 2
+  js_click '.side-menu-lists'
 end
 
 step "the user clicks on the about link in the side menu" do