* Make file providers work at all
NSExtensionFileProviderDocumentGroup must be a valid app group. This
updates it to use the new name of the app group including the team ID.
* Update AltStore/Operations/ResignAppOperation.swift
Apple's Info.plist support platform and device specific keys to augment existing
keys. For example `UISupportedInterfaceOrientations~ipad` replaces
`UISupportedInterfaceOrientations` when running on an iPad.
By using Bundle.infoDictionary, Apple will pre-process the Info.plist and replace
any key with its device specific variant. Since AltStore does not support iPad,
this will strip out any iPad specific keys for the installing app.
We add an extension Bundle.completeInfoDictionary that will return the original
de-serialized dictionary including all the device specific keys.
See: https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/AboutInformationPropertyListFiles.html#//apple_ref/doc/uid/TP40009254-SW9
# Conflicts:
# AltKit/Extensions/Bundle+AltStore.swift
# AltStore/Model/DatabaseManager.swift
Assuming the certificate used to originally sign an app is still valid, we can refresh an app simply by installing new provisioning profiles. However, if the signing certificate is no longer valid, we fall back to the old method of resigning + reinstalling.
AltStore now inserts an app-specific UTI when resigning apps, and it periodically checks whether that app has been deleted by checking whether UTTypeCopyDeclaration returns nil for the same app-specific UTI.
Uses embedded certificate from AltServer if possible, but then falls back to asking user to refresh AltStore manually if the certificate used to install AltStore is revoked.
Tries to refresh apps that are about to expire first, and then always refreshes AltStore itself last, since refreshing AltStore means that the app will quit.
