feat(website): update home page to showcase CherryPick DI documentation

- Replaced the main action button text with 'Explore CherryPick Documentation 🍒' instead of 'Docusaurus Tutorial'.
- Updated the button link to target /docs/intro (main docs entry point).
- Changed <Layout> props:
  - Page title now uses project title only (siteConfig.title)
  - Added a CherryPick-related site description for better SEO and context.
- The homepage is now tailored to reflect CherryPick's purpose as a Dart & Flutter DI library instead of Docusaurus boilerplate.

website/docs/dependency-resolution-api.md

@@ -0,0 +1,15 @@
+---
+sidebar_position: 4
+---
+
+# Dependency Resolution API
+
+- `resolve<T>()` — Locates a dependency instance or throws if missing.
+- `resolveAsync<T>()` — Async variant for dependencies requiring async binding.
+- `tryResolve<T>()` — Returns `null` if not found (sync).
+- `tryResolveAsync<T>()` — Returns `null` async if not found.
+
+Supports:
+- Synchronous and asynchronous dependencies
+- Named dependencies
+- Provider functions with and without runtime parameters