Adds PillButton.style to switch between pill and custom styles

`pill` style enforces minimum size + content insets, while `custom` doesn’t.

AltStore/Components/PillButton.swift

@@ -14,7 +14,16 @@ extension PillButton
     static let contentInsets = NSDirectionalEdgeInsets(top: 7, leading: 13, bottom: 7, trailing: 13)
 }
 
-final class PillButton: UIButton
+extension PillButton
+{
+    enum Style
+    {
+        case pill
+        case custom
+    }
+}
+
+class PillButton: UIButton
 {
     override var accessibilityValue: String? {
         get {
@@ -55,6 +64,18 @@ final class PillButton: UIButton
         }
     }
     
+    var style: Style = .pill {
+        didSet {
+            if self.style == .custom
+            {
+                // Reset insets for custom style.
+                self.contentEdgeInsets = UIEdgeInsets(top: 8, left: 8, bottom: 8, right: 8)
+            }
+            
+            self.update()
+        }
+    }
+    
     private let progressView = UIProgressView(progressViewStyle: .default)
     
     private lazy var displayLink: CADisplayLink = {
@@ -106,8 +127,6 @@ final class PillButton: UIButton
         self.layer.masksToBounds = true
         self.accessibilityTraits.formUnion([.updatesFrequently, .button])
         
-        self.contentEdgeInsets = UIEdgeInsets(top: Self.contentInsets.top, left: Self.contentInsets.leading, bottom: Self.contentInsets.bottom, right: Self.contentInsets.trailing)
-        
         self.activityIndicatorView.style = .medium
         self.activityIndicatorView.color = .white
         self.activityIndicatorView.isUserInteractionEnabled = false
@@ -144,8 +163,16 @@ final class PillButton: UIButton
     override func sizeThatFits(_ size: CGSize) -> CGSize
     {
         var size = super.sizeThatFits(size)
-        size.width = max(size.width, PillButton.minimumSize.width)
-        size.height = max(size.height, PillButton.minimumSize.height)
+        
+        switch self.style 
+        {
+        case .pill:
+            // Enforce minimum size for pill style.
+            size.width = max(size.width, PillButton.minimumSize.width)
+            size.height = max(size.height, PillButton.minimumSize.height)
+            
+        case .custom: break
+        }
         
         return size
     }
@@ -170,6 +197,13 @@ private extension PillButton
         
         // Update font after init because the original titleLabel is replaced.
         self.titleLabel?.font = UIFont.boldSystemFont(ofSize: 14)
+        
+        switch self.style
+        {
+        case .custom: break // Don't update insets in case client has updated them.
+        case .pill:
+            self.contentEdgeInsets = UIEdgeInsets(top: Self.contentInsets.top, left: Self.contentInsets.leading, bottom: Self.contentInsets.bottom, right: Self.contentInsets.trailing)
+        }
     }
     
     @objc func updateCountdown()