Linked resources

It might be a cool feature to have links from one resource to another:
1. In Gallery screen, user can press `[link]` button.
2. Resource Grid screen in "picking" mode should open.
3. In picking mode, user can use same means to query resources.
4. In picking mode, user can "confirm" selection of resources.
5. Confirmed resources become linked to the resource from step 1.
6. Now, in Gallery screen `[link]` button cycles linked resources.
7. Long tap on `[link]` button resets links, so the user can link another resources.

Links must be stored in separate storage.

Start by locating the Gallery screen and the Resource Grid screen, including its picking mode, and trace how resource queries and selections currently work. Review how separate storage is handled before defining the link flow. Done means users can select resources, confirm links, cycle through them from Gallery, and reset them with a long tap.

Written by the indexing model from the issue text.