Add sidebar toggle to command menu

app/actions/definitions/navigation.tsx

@@ -142,6 +142,14 @@ export const openAPIDocumentation = createAction({
   perform: () => window.open(developersUrl()),
 });
 
+export const toggleSidebar = createAction({
+  name: ({ t }) => t("Toggle sidebar"),
+  analyticsName: "Toggle sidebar",
+  keywords: "hide show navigation",
+  section: NavigationSection,
+  perform: ({ stores }) => stores.ui.toggleCollapsedSidebar(),
+});
+
 export const openFeedbackUrl = createAction({
   name: ({ t }) => t("Send us feedback"),
   analyticsName: "Open feedback",
@@ -217,5 +225,6 @@ export const rootNavigationActions = [
   openBugReportUrl,
   openChangelog,
   openKeyboardShortcuts,
+  toggleSidebar,
   logout,
 ];