Step 3 - Setup snippet utils and components for multi file

• Step 1 - Update editor lite and component with global id
• Step 2 - Fix blob editor lite scroll
• Step 3 - Setup snippet utils and components for multi file
• Step FINAL - Add/remove snippet files in the edit view

What does this MR do?

This MR does some refactoring and setup for snippet modules and components to support multi-file snippets.

Screenshots

References

• Related to #217801 (closed)