Added link to privacy policy

- Fixed issue where deleting photos would delete the wrong photo when the grid was offset
- Fixed crash trying to view the About screen

- Fixed bug where existing/old Instagram posts would appear missing
- Added 'About' section in settings menu

Updated app title for Instagram compliance

- Fixed bug where Instagram posts from your existing feed were getting duplicated
- Fixed bug where Instagram auth token was expiring too quickly
If you have linked your Instagram, recommend you reconnect it to reset these two issues.