add basic support for mobile mode

web/static/tests/widgets/__snapshots__/navbar.test.ts.snap

@@ -21,3 +21,12 @@ exports[`can render one menu item 1`] = `
         </ul>
     </div>"
 `;
+
+exports[`mobile mode: navbar is different 1`] = `
+"<div class=\\"o_navbar\\">
+        <span class=\\"title\\">Odoo MOBILE</span>
+        <ul>
+            
+        </ul>
+    </div>"
+`;

web/static/tests/widgets/navbar.test.ts

@@ -34,3 +34,10 @@ test("can render one menu item", async () => {
   await navbar.mount(fixture);
   expect(fixture.innerHTML).toMatchSnapshot();
 });
+
+test("mobile mode: navbar is different", async () => {
+  env.isMobile = true;
+  const navbar = new Navbar(env);
+  await navbar.mount(fixture);
+  expect(fixture.innerHTML).toMatchSnapshot();
+});