🐛(frontend) add default toolbar buttons

We are overriding the default toolbar to add the
markdown and ai buttons. By doing that we were
missing some default buttons that are useful depend
on the block type. This commit adds the default
buttons to the toolbar.

src/frontend/apps/e2e/__tests__/app-impress/doc-editor.spec.ts

@@ -9,6 +9,43 @@ test.beforeEach(async ({ page }) => {
 });
 
 test.describe('Doc Editor', () => {
+  test('it checks default toolbar buttons are displayed', async ({
+    page,
+    browserName,
+  }) => {
+    await createDoc(page, 'doc-toolbar', browserName, 1);
+
+    const editor = page.locator('.ProseMirror');
+    await editor.click();
+    await editor.fill('test content');
+
+    await editor.getByText('test content').dblclick();
+
+    const toolbar = page.locator('.bn-formatting-toolbar');
+    await expect(toolbar.locator('button[data-test="bold"]')).toBeVisible();
+    await expect(toolbar.locator('button[data-test="italic"]')).toBeVisible();
+    await expect(
+      toolbar.locator('button[data-test="underline"]'),
+    ).toBeVisible();
+    await expect(toolbar.locator('button[data-test="strike"]')).toBeVisible();
+    await expect(
+      toolbar.locator('button[data-test="alignTextLeft"]'),
+    ).toBeVisible();
+    await expect(
+      toolbar.locator('button[data-test="alignTextCenter"]'),
+    ).toBeVisible();
+    await expect(
+      toolbar.locator('button[data-test="alignTextRight"]'),
+    ).toBeVisible();
+    await expect(toolbar.locator('button[data-test="colors"]')).toBeVisible();
+    await expect(
+      toolbar.locator('button[data-test="unnestBlock"]'),
+    ).toBeVisible();
+    await expect(
+      toolbar.locator('button[data-test="createLink"]'),
+    ).toBeVisible();
+  });
+
   test('checks the Doc is connected to the provider server', async ({
     page,
     browserName,