Move Import Selection menu item to File menu bar.

src/app/MenuBar.cpp

@@ -107,6 +107,13 @@ struct FileButton : MenuButton {
 
 		menu->addChild(new ui::MenuSeparator);
 
+		// Load selection
+		menu->addChild(createMenuItem("Import selection", "", [=]() {
+			APP->scene->rack->loadSelectionDialog();
+		}, false, true));
+
+		menu->addChild(new ui::MenuSeparator);
+
 		menu->addChild(createMenuItem("Quit", RACK_MOD_CTRL_NAME "+Q", []() {
 			APP->window->close();
 		}));

src/app/RackWidget.cpp

@@ -1235,11 +1235,6 @@ void RackWidget::appendSelectionContextMenu(ui::Menu* menu) {
 		pasteClipboardAction();
 	}, false, true));
 
-	// Load
-	menu->addChild(createMenuItem("Import selection", "", [=]() {
-		loadSelectionDialog();
-	}, false, true));
-
 	// Save
 	menu->addChild(createMenuItem("Save selection as", "", [=]() {
 		saveSelectionDialog();