indent

app/views/admin/application/favorites/_widget.html.erb

 <div>
   <% if current_user.favorite?(about)%>
-    <%= link_to admin_favorite_path(operation: :remove, 
-                                    about_id: about.id, 
-                                    about_type: about.class.polymorphic_name), 
-                method: :put do %>
+    <%= link_to admin_favorite_path(
+                  operation: :remove, 
+                  about_id: about.id, 
+                  about_type: about.class.polymorphic_name
+                ), method: :put do %>
       <%= t 'user.favorites.remove' %>
       <i class="fas fa-star"></i>
     <% end %>
 
   <% else %>
-    <%= link_to admin_favorite_path(operation: :add, 
-                                    about_id: about.id, 
-                                    about_type: about.class.polymorphic_name), 
-                method: :put do %>
+    <%= link_to admin_favorite_path(
+                  operation: :add, 
+                  about_id: about.id, 
+                  about_type: about.class.polymorphic_name
+                ), method: :put do %>
       <%= t 'user.favorites.add' %>
       <i class="fa-regular fa-star"></i>
     <% end %>