Added option to turn on/off separation of tags by custom category

src/routes/preferences/tags/+page.svelte

@@ -5,6 +5,7 @@
   import Menu from "$components/ui/menu/Menu.svelte";
   import MenuItem from "$components/ui/menu/MenuItem.svelte";
   import { stripBlacklistedTagsEnabled } from "$stores/preferences/maintenance";
+  import { shouldSeparateTagGroups } from "$stores/preferences/tag";
 </script>
 
 <Menu>
@@ -17,4 +18,9 @@
       Automatically remove black-listed tags from the images
     </CheckboxField>
   </FormControl>
+  <FormControl>
+    <CheckboxField bind:checked={$shouldSeparateTagGroups}>
+      Enable separation of custom tag groups on the image pages
+    </CheckboxField>
+  </FormControl>
 </FormContainer>