* Fix rotation of images uploaded from iPhones
iPhones[1] take pictures in portrait mode with the orientation set to
90ºCCW. We noticed that uploading one of these images to a Forem
instance caused the image to be rotated when rendered. The current
theory is that Imgproxy is not maintaining the orientation value when
processing, which is solved by setting `auto_rotate: true` (serialized
into the Imgproxy URL as `ar:1`), according to the documentation.
See: 8e6585e28d/docs/generating_the_url_advanced.md (auto-rotate)
[1] This probably happens with other phones, but we discovered the issue
using an iPhone.
* Fix Imgproxy URL expectation for auto_rotate
* Rename SiteConfig
* More renaming
* Update spec
* Update mandatory settings mapping
* More renaming
* e2e test fixes
* You have a rename, and you have a rename
* Spec fix
* More changes
* Temporarily disable specs
* After-merge update
* Undo rename for migration
* undo rename of DUS
* Fix DUS
* Fix merge problem
* Remove redundant DUS
* Fix specs
* Remove unused code
* Change wrong class name
* More cleanup
* Re-add missing values to constant
* Fix constant
* Fix spec
* Remove obsolete fields
* Add accidentally removed field
* Update spec
* Move methods from Settings::General to ForemInstance
* Remove unneeded model
* Change mentions of 'site config'
