[AltStore] Refactors BrowseViewController screenshot size logic

AltStore/Browse/ScreenshotCollectionViewCell.swift

@@ -13,15 +13,25 @@ import Roxas
 @objc(ScreenshotCollectionViewCell)
 class ScreenshotCollectionViewCell: UICollectionViewCell
 {
-    let imageView: UIImageView
+    let imageView = UIImageView(image: nil)
+    
+    override init(frame: CGRect)
+    {
+        super.init(frame: frame)
+        
+        self.initialize()
+    }
     
     required init?(coder aDecoder: NSCoder)
     {
-        self.imageView = UIImageView(image: nil)
-        self.imageView.layer.masksToBounds = true
-        
         super.init(coder: aDecoder)
         
+        self.initialize()
+    }
+    
+    private func initialize()
+    {
+        self.imageView.layer.masksToBounds = true
         self.addSubview(self.imageView, pinningEdgesWith: .zero)
     }
     
@@ -29,14 +39,6 @@ class ScreenshotCollectionViewCell: UICollectionViewCell
     {
         super.layoutSubviews()
         
-        if let image = self.imageView.image, (image.size.height / image.size.width) > ((16.0 / 9.0) + 0.1)
-        {
-            // Image aspect ratio is taller than 16:9, so assume it's an X-style screenshot and set corner radius.
-            self.imageView.layer.cornerRadius = max(self.imageView.bounds.width / 9.8, 8)
-        }
-        else
-        {
-            self.imageView.layer.cornerRadius = 0
-        }        
+        self.imageView.layer.cornerRadius = 4     
     }
 }