Refactor documentation for clarity and consistency

- Updated descriptions and terminology across various component documentation files for improved clarity.
- Changed headings and section titles for better readability and consistency.
- Enhanced the language and structure of the documentation to provide clearer guidance on usage and configuration.
- Removed the `fix-docs.js` script as its functionality has been integrated into the translation process.
- Improved the translation script to handle Markdown code block issues and added retry logic for API calls.

packages/artplayer-vitepress/docs/en/component/layers.md

@@ -1,4 +1,4 @@
-# Layer
+# Layers
 
 ## Configuration