feat: load optional XDG TOML configuration with session overrides

Sources/App/CompactWindow.swift

@@ -9,7 +9,6 @@ final class CompactWindowController: NSObject {
     var snappingEnabled: Bool {
         didSet {
             guard snappingEnabled != oldValue else { return }
-            defaults.set(snappingEnabled, forKey: "compactSnappingEnabled")
             onChange?()
         }
     }
@@ -45,7 +44,6 @@ final class CompactWindowController: NSObject {
 
     private enum FullScreenTransition { case entering, exiting }
 
-    private let defaults: UserDefaults
     private weak var window: NSWindow?
     private var snapshot: Snapshot?
     private var fullScreenTransition: FullScreenTransition?
@@ -57,10 +55,8 @@ final class CompactWindowController: NSObject {
     private var videoAspect = 16.0 / 9.0
     private var fittedAspect: Double?
 
-    init(defaults: UserDefaults = .standard) {
-        self.defaults = defaults
-        defaults.register(defaults: ["compactSnappingEnabled": true])
-        snappingEnabled = defaults.bool(forKey: "compactSnappingEnabled")
+    init(snappingEnabled: Bool = true) {
+        self.snappingEnabled = snappingEnabled
         super.init()
     }