Improve admin panel usability

[Atulin]

Reports

• Resolve/dismiss/close workflow
• Filters by date, content type, status

Infractions

• Filter by type, issuer, receiving user
• Sort by expiry date and creation date
• Link to user page in the admin panel
• Pagination

Modlog

• Filters
• Sorting

Dashboard

• Open reports count
• Show n latest reports maybe
• Show n latest moderator actions
• Proper trend data with charts n' shit, instead of just total number of each item

Users

• Browse users
  • Search/filter by email, registration date range, etc
  • Sort
• Show more data, like a history of reports against the user and their content
• Perhaps show an invite chain?

Clubs

• Club deletion
• Ownership transfer
• Warnings or infractions per-club, maybe?

Miscellaneous

• Badge with open reports count in the sidebar

[Atulin]

Infraction links and pagination, dashboard mod actions and partial trend data, done in 1c3311c

[Atulin]

Report badges and statuses (no way to change it yet) added in 5bfe12f

[Atulin]

5950e70 introduced an endpoint to fuzzily search for users by name using tsvector, but it still needs to be hooked up into the UI