Merge pull request #29899 from awanlin/docs/remove-prettier-ignore-comment

Removed unneeded `# prettier-ignore` comment in docs and blog files

docs/frontend-system/building-apps/01-index.md

@@ -2,7 +2,6 @@
 id: index
 title: Building Frontend Apps
 sidebar_label: Overview
-# prettier-ignore
 description: Building frontend apps using the new frontend system
 ---
 

docs/frontend-system/building-apps/02-configuring-extensions.md

@@ -2,7 +2,6 @@
 id: configuring-extensions
 title: Configuring Extensions in the App
 sidebar_label: Configuring Extensions
-# prettier-ignore
 description: Documentation for how to configure extensions in a Backstage app
 ---
 

docs/frontend-system/building-apps/03-built-in-extensions.md

@@ -2,7 +2,6 @@
 id: built-in-extensions
 title: App Built-in Extensions
 sidebar_label: Built-in extensions
-# prettier-ignore
 description: Configuring or overriding built-in extensions
 ---
 

docs/frontend-system/building-apps/06-plugin-conversion.md

@@ -2,7 +2,6 @@
 id: plugin-conversion
 title: Converting 3rd-party plugins from the old system
 sidebar_label: Converting 3rd-party Plugins
-# prettier-ignore
 description: Documentation for how to convert 3rd-party plugins to support the new frontend system.
 ---
 

docs/frontend-system/building-apps/08-migrating.md

@@ -2,7 +2,6 @@
 id: migrating
 title: Migrating Apps
 sidebar_label: Migration Guide
-# prettier-ignore
 description: How to migrate existing apps to the new frontend system
 ---