Fix E2E tests broken by formatter

Author: delucis

.prettierignore

@@ -20,6 +20,7 @@ packages/starlight/user-components/Tabs.astro
 
 # Prettier forces whitespace between elements we want to avoid for consistency with the rehype version
 packages/starlight/components/AnchorHeading.astro
+packages/starlight/__e2e__/fixtures/basics/src/content/docs/anchor-heading-component.mdx
 
 # Malformed YAML file used for testing
 packages/starlight/__tests__/i18n/malformed-yaml-src/content/i18n/*.yml

packages/starlight/__e2e__/fixtures/basics/src/content/docs/anchor-heading-component.mdx

@@ -4,10 +4,6 @@ title: Anchor Headings Component
 
 import AnchorHeading from '@astrojs/starlight/components/AnchorHeading.astro';
 
-<AnchorHeading level="2" id="an-anchor-heading">
-	An anchor heading
-</AnchorHeading>
+<AnchorHeading level="2" id="an-anchor-heading">An anchor heading</AnchorHeading>
 
-<AnchorHeading level="3" id="another-anchor-heading">
-	Another anchor heading
-</AnchorHeading>
+<AnchorHeading level="3" id="another-anchor-heading">Another anchor heading</AnchorHeading>