Admin can filter by tags

[kgardnr]

• Selects one tag and search results return submissions with that tag ["New Yorker"]
• Select multiple tags (using AND) and search results return submissions that contain all those tags ["New Yorker" AND "Male" AND "Dog Owner"]
• Select multiple tags (using OR) and search results return submissions that contain any of those tags ["New Yorker" OR "Male" OR "Dog Owner"]
• Select ALL tags and search results return submission that contain any tags at all
• Clear tag filters
• Tag filters given higher search preference than other filters

[kgardnr]

This feature was removed from the roadmap, we can reopen in the future if we decided to work on it.