Purpose of this issue is to accumulate and track issues that will form the next breaking change (version 2.0.0) of the in_app_purchase plugin.

• [in_app_purchase] Ability to discern error versus cancel in PurchaseStatus.error #83730;
• [in_app_purchase] restorePurchases handles "nothing to restore"-case differently on iOS and Android #82795;
• Rename the "in_app_purchase_ios" package to "in_app_purchase_storekit" to facilitate MacOS support;