## Overview
Users should be able to pin their favorite tags to their blog.
## Implementation idea
Create a `pins` table that includes all pinned items for a collection. Also consider {T495} implementation if we go with that.
| collection_id | tag | post_id | pinned_position |
### Design
On the `/tags/{tag}` page, add an option at / near the top of the page to "pin". Consider making this visible to all users, and prompting user to upgrade if they're not Pro. If a tag is already pinned, this should say "unpin".