macos: move Ghostty surface view into dedicated folder

macos/Ghostty.xcodeproj/project.pbxproj

@@ -142,10 +142,10 @@
 				Ghostty/Ghostty.Event.swift,
 				Ghostty/Ghostty.Input.swift,
 				Ghostty/Ghostty.Surface.swift,
-				Ghostty/InspectorView.swift,
 				"Ghostty/NSEvent+Extension.swift",
-				Ghostty/SurfaceScrollView.swift,
-				Ghostty/SurfaceView_AppKit.swift,
+				"Ghostty/Surface View/InspectorView.swift",
+				"Ghostty/Surface View/SurfaceScrollView.swift",
+				"Ghostty/Surface View/SurfaceView_AppKit.swift",
 				Helpers/AppInfo.swift,
 				Helpers/CodableBridge.swift,
 				Helpers/Cursor.swift,
@@ -187,7 +187,7 @@
 			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
 			membershipExceptions = (
 				App/iOS/iOSApp.swift,
-				Ghostty/SurfaceView_UIKit.swift,
+				"Ghostty/Surface View/SurfaceView_UIKit.swift",
 			);
 			target = A5B30530299BEAAA0047F10C /* Ghostty */;
 		};

macos/Sources/Ghostty/Surface View/SurfaceView_AppKit.swift

@@ -1654,7 +1654,6 @@ extension Ghostty {
         struct DerivedConfig {
             let backgroundColor: Color
             let backgroundOpacity: Double
-            let backgroundBlur: Ghostty.Config.BackgroundBlur
             let macosWindowShadow: Bool
             let windowTitleFontFamily: String?
             let windowAppearance: NSAppearance?
@@ -1663,7 +1662,6 @@ extension Ghostty {
             init() {
                 self.backgroundColor = Color(NSColor.windowBackgroundColor)
                 self.backgroundOpacity = 1
-                self.backgroundBlur = .disabled
                 self.macosWindowShadow = true
                 self.windowTitleFontFamily = nil
                 self.windowAppearance = nil
@@ -1673,7 +1671,6 @@ extension Ghostty {
             init(_ config: Ghostty.Config) {
                 self.backgroundColor = config.backgroundColor
                 self.backgroundOpacity = config.backgroundOpacity
-                self.backgroundBlur = config.backgroundBlur
                 self.macosWindowShadow = config.macosWindowShadow
                 self.windowTitleFontFamily = config.windowTitleFontFamily
                 self.windowAppearance = .init(ghosttyConfig: config)