Randomizes featured source + app order at app launch

AltStoreCore/Model/Source.swift

@@ -215,6 +215,8 @@ public class Source: NSManagedObject, Fetchable, Decodable
     
     @NSManaged public var error: NSError?
     
+    @NSManaged public var featuredSortID: String?
+    
     /* Non-Core Data Properties */
     public var userInfo: [ALTSourceUserInfoKey: String]?
     
@@ -350,6 +352,13 @@ public class Source: NSManagedObject, Fetchable, Decodable
             throw error
         }
     }
+    
+    public override func awakeFromInsert()
+    {
+        super.awakeFromInsert()
+        
+        self.featuredSortID = UUID().uuidString
+    }
 }
 
 public extension Source