User/Server Sign In Redesign

[LePips]

This actually turned into a very large refactor and I also implemented more features so that I don't have to look at this area again for a while. However, there is still a lot that could be done as cleanup.

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Redesign

The entire user/server connection flow has been redesigned. Instead of separate "screens" for the server list, user list, server connection, and user sign in, everything is now rooted into a single view for user selection.

Preview

Select User	Select Server	Connect To Server

User Sign In	App Settings

Things don't look too much different, but this actually required a lot of work especially since I had the desire for the an feature of listing all connected users on the device. I have come to like this new flow since it made some other designs more simple, like not requiring the splash screen on the user sign in view, since everything is now a sheet presentation. However, I'm not entirely final on how the server selection works with a Menu. I went back and forth for a while between that and a sheet presentation but I'll have to think about it more. The switch wouldn't be much work.

App Settings

The settings view accessible from here are settings meant for the app, and not necessarily settings for users while signed-in. This will receive some more work when I get to the Super User feature which will allow locked-down control of local device settings.

Other highlights

• display users in a list
• single or multi-user deletion
• the grid view will be static until enough users are added to fill the screen where it will then scroll
• the grid view will position the last row of items to be centered. This is most noticeable on iPads with many users.
• background splash screen
• allow sign out after some time
• allow sign out after force close
• allow pin or device authentication to sign into a user
• user settings are now per-user and not shared
  • sadly I'm not performing a migration for this, so settings will be defaulted
• nicer animations when signing in and switching users
• when launching the app, if any database or other migrations need to be performed it will go to a brief loading screen
  • there will be a database migration from this work
  • will show an error if the migration failed, however if one does occur then the user can't do anything else within the app and is required to re-install
• when signing in, will now go to a loading view as a "reachability" measure and don't show tabs/home unless we have performed a basic network call to the server
  • for a potential offline mode, this flow would change
• network timeouts have been reduced from 60 to 15 seconds
• user settings view has been redesigned around the user/server area
  • authorize Quick Connect
  • change Jellyfin user password
  • change local device pin/auth access
• user access token now stored in the Keychain instead of Core Data
• remember sort order and display for libraries, if enabled
• a lot of other cleanup, polish, and developer-facing changes

tvOS

tvOS again gets less work done, but even worse this time as this is all incomplete on tvOS. I got the basics done but lost motivation after I ran into many design problems with SwiftUI on tvOS. I had wanted to finally figure out what to do with tvOS users <-> Swiftfin user mapping but, again, lost motivation.

Even though there was work done with the database, I am sadly unsure if the issue of #776 is resolved since I didn't work much on tvOS. I didn't even tough my own device while working on it and only worked within the simulator.

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• Closes Enable Local Authentication #374
• Closes Can't remove server or change URL #629
• Closes Quick Connect login not working #667
  • entire Quick Connect flow has been refactored and verified Quick Connect works on iOS and tvOS
• Closes Auto sign off user after the app goes to background #747
• Closes tvOS - Redesign Server and User List Flows #819
  • I'm going to count this as the redesign, even though unfinished
• Closes Quicker User switching #855
• Closes Remember the sort order #918
• Closes Customize poster view per-library #919
• Closes [ATV] App soft-lock after pressing "switch user" #921
  • did not observe this with redesign
• Closes tvOS: Can no longer sign in #930
  • did not observe this, new error handling should surface right error
• Closes Can't use remote keyboard (from iphone) to input server URL on server connect view #931
  • did not observe issue
• Closes Cannot connect to local server from AppleTV 4K #959
  • could connect to local server, new error handling should surface right error
• Closes Missing "Add URL" button when trying to add a second server URL #987
  • fixed multiple urls for servers on tvOS, verified switching albeit it's kind of unintuitive to access
• Closes Connecting To Local Servers via Server Discovery in tvOS does not work #988
  • was able to connect with a local server on tvOS