chore(deps): update multiple packages for latest features

Updated various dependencies including esbuild, rollup, postcss,
autoprefixer, browserslist, and related types to their latest versions.
This improves compatibility, security, and feature support. Also
removed obsolete package references from pnpm-lock.yaml.

Co-Developed-By: Claude <[email protected]>
Signed-off-by: Dipankar Das <[email protected]>

Author: dipankardas011

.astro/types.d.ts

@@ -1 +1,2 @@
 /// <reference types="astro/client" />
+/// <reference path="content.d.ts" />