DialogV2: Add alpha status to docs (#5706)

Co-authored-by: TylerJDev <[email protected]>
Co-authored-by: Jon Rohan <[email protected]>

Author: TylerJDev

.playwright/snapshots/components/Dialogv1.test.ts-snapshots/Dialogv1-Default-dark-colorblind-linux.png

@@ -8,7 +8,7 @@ test.describe('Dialog v1', () => {
       test.describe(theme, () => {
         test('default @vrt', async ({page}) => {
           await visit(page, {
-            id: 'components-dialogv1--default',
+            id: 'deprecated-components-dialogv1--default',
             globals: {
               colorScheme: theme,
             },