Requests UI

[austinwbest]

• [x] add an instance picker to the search ui instead of forcing instance 1
• [x] add pending requests as an option for a UI link
• [x] add follow as an option for a UI link
• [x] add discover as an option for a UI link
• [x] add support for lidarr to search keyword
• [x] add support for readarr to search keyword
• [x] add back support for sonarr to search keyword
• [x] #2
• [x] add a way to pick multiple movies at once with radarr
• [x] add a way to pick multiple series at once with sonarr
• [x] refactor bootstrap usage for radarr
• [x] fix approval permissions check

[austinwbest]

Done on nightly