add optional arrowkeys controls option

plugins/precise-volume/menu.js

@@ -0,0 +1,10 @@
+module.exports = (win, options) => [
+	{
+		label: "Arrowkeys controls",
+		type: "checkbox",
+		checked: !!options.arrowsShortcut,
+		click: (item) => {
+            win.webContents.send("setArrowsShortcut", item.checked);
+        }
+	}
+];