[Up Next Shuffle] Enable the Feature for Plus and Patron only

[danielebogo]

📘 Part of: Up Next Shuffle

This PR adds:
• The feature available for Plus and Patron user only
• Hides the shuffle button and clear button if the queue is empty
• Update Changelog

Plus Icon	Default Icon	Empty Screen

To test

• CI must be 🟢
• Run the app with the StoreKit scheme or run this PR on a real device with a sandbox account
• Run a fresh install and log in with a non plus/patron user
• Add few episodes in the queue
• Go to Up Next
• Confirm the Shuffle button gold is present
• Clear the queue
• Confirm both shuffle and clear button disappear from the view
• Add few episodes again
• Go back to Up Next
• Tap shuffle gold
• Confirm the paywall is presented
• Purchase a plan
• When the paywall is dismissed confirm the Shuffle icon is the gray one
• Confirm tapping the shuffle doesn't promtp the paywall and enable/disable the feature

Checklist

• I have considered if this change warrants user-facing release notes and have added them to CHANGELOG.md if necessary.
• I have considered adding unit tests for my changes.
• I have updated (or requested that someone edit) the spreadsheet to reflect any new or changed analytics.

[SergioEstevao]

Very edge case but when testing this when switching from a Patron account ( where I had Shuffle active) to a free account the shuffle option stayed active on the free active, and I couldn't disable it with out going trough the paywall.

I think the issue here, is that the UpNext that is part of the tab, only updates on startup, so you probably need to refresh it on logout notification.

It will also be good to reset the shuffle setting when logging out of an account so it goes to the disable state.

[SergioEstevao]

If you open the the app, without any account installed, then create an account but without signing up for Plus or Patron the shuffle button stays inactive until I restart the app.

[SergioEstevao]

See my comments about logging out from an account that has Patron/Plus

[danielebogo]

Thansk @SergioEstevao ! The PR should be ready for another look.

If you open the the app, without any account installed, then create an account but without signing up for Plus or Patron the shuffle button stays inactive until I restart the app.

I think this is because of the FF being enabled after the view did load. I realized that this may affect the old button too

It will also be good to reset the shuffle setting when logging out of an account so it goes to the disable state.

I added the check of the user login state