Fixes CollapsingTextView “TextKit 1 compatibility mode” runtime warning

AltStore/Components/CollapsingTextView.swift

@@ -22,19 +22,57 @@ class CollapsingTextView: UITextView
         }
     }
     
-    var lineSpacing: CGFloat = 2 {
+    var lineSpacing: Double = 2 {
         didSet {
-            self.setNeedsLayout()
+            if #available(iOS 16, *)
+            {
+                self.updateText()
+            }
+            else
+            {
+                self.setNeedsLayout()
+            }
+        }
+    }
+    
+    override var text: String! {
+        didSet {
+            guard #available(iOS 16, *) else { return }
+            self.updateText()
         }
     }
     
     let moreButton = UIButton(type: .system)
     
+    override init(frame: CGRect, textContainer: NSTextContainer?)
+    {
+        super.init(frame: frame, textContainer: textContainer)
+        
+        self.initialize()
+    }
+    
+    required init?(coder: NSCoder)
+    {
+        super.init(coder: coder)
+    }
+    
     override func awakeFromNib()
     {
         super.awakeFromNib()
         
-        self.layoutManager.delegate = self
+        self.initialize()
+    }
+    
+    private func initialize()
+    {
+        if #available(iOS 16, *)
+        {
+            self.updateText()
+        }
+        else
+        {
+            self.layoutManager.delegate = self
+        }
         
         self.textContainerInset = .zero
         self.textContainer.lineFragmentPadding = 0
@@ -108,6 +146,25 @@ private extension CollapsingTextView
     {
         self.isCollapsed.toggle()
     }
+    
+    @available(iOS 16, *)
+    func updateText()
+    {
+        do
+        {
+            let style = NSMutableParagraphStyle()
+            style.lineSpacing = self.lineSpacing
+            
+            var attributedText = try AttributedString(self.attributedText, including: \.uiKit)
+            attributedText[AttributeScopes.UIKitAttributes.ParagraphStyleAttribute.self] = style
+            
+            self.attributedText = NSAttributedString(attributedText)
+        }
+        catch
+        {
+            print("[ALTLog] Failed to update CollapsingTextView line spacing:", error)
+        }
+    }
 }
 
 extension CollapsingTextView: NSLayoutManagerDelegate