Dashboard Controls: Add UI for displaying under menu (#113517)

* feat: add options to render under the controls menu

* fix: filter out hidden annotation layers from the dashboard-controls menu

* fix: adjust spacing between annotation controls in the dashboard-controls menu

* fix: e2e test for variables

* feat: move the menu button next to the variables

* fix: remove duplicate link controls

* fix: show dashboard controls when the dashboard is not saved

e2e-playwright/dashboards-suite/new-query-variable.spec.ts

@@ -54,7 +54,13 @@ test.describe(
       await expect(descriptionInput).toHaveAttribute('placeholder', 'Descriptive text');
       await expect(descriptionInput).toHaveValue('');
 
-      await expect(page.locator('label').filter({ hasText: 'Hide' })).toBeVisible();
+      // Display
+      await expect(page.locator('label', { hasText: /^Display$/ })).toBeVisible();
+      const displaySelect = dashboardPage.getByGrafanaSelector(
+        selectors.pages.Dashboard.Settings.Variables.Edit.General.generalDisplaySelect
+      );
+      await expect(displaySelect).toBeVisible();
+      await expect(displaySelect).toHaveValue('Above dashboard');
 
       // Check datasource selector
       const datasourceSelect = dashboardPage.getByGrafanaSelector(