Input: improve layout

Put some margins around the main view

src/preferences/input/InputDeviceView.cpp

@@ -51,7 +51,6 @@ DeviceListView::DeviceListView(const char* name)
 	fDeviceList->AddItem(new DeviceName("Touchpad", 102));
 
 	BLayoutBuilder::Group<>(this, B_VERTICAL)
-		.SetInsets(B_USE_DEFAULT_SPACING)
 		.Add(fScrollView)
 		.End();
 	fDeviceList->SetSelectionMessage(new BMessage(ITEM_SELECTED));

src/preferences/input/InputWindow.cpp

@@ -34,9 +34,9 @@
 #define B_TRANSLATION_CONTEXT "InputWindow"
 
 
-InputWindow::InputWindow(BRect _rect)
+InputWindow::InputWindow(BRect rect)
 	:
-	BWindow(_rect, B_TRANSLATE_SYSTEM_NAME("Input"), B_TITLED_WINDOW,
+	BWindow(rect, B_TRANSLATE_SYSTEM_NAME("Input"), B_TITLED_WINDOW,
 		B_NOT_RESIZABLE | B_NOT_ZOOMABLE | B_ASYNCHRONOUS_CONTROLS
 		| B_AUTO_UPDATE_SIZE_LIMITS | B_QUIT_ON_WINDOW_CLOSE)
 {
@@ -49,8 +49,9 @@ InputWindow::InputWindow(BRect _rect)
 	fCardView->AddChild(fTouchpadPrefView);
 
 	BLayoutBuilder::Group<>(this, B_HORIZONTAL, 10)
+		.SetInsets(B_USE_WINDOW_SPACING)
 		.Add(fDeviceListView)
-		.AddGroup(B_VERTICAL,0)
+		.AddGroup(B_VERTICAL, 0)
 			.Add(fCardView)
 		.End();
 }