Add Minimap Support to Filament Rich Editor

[fuyuan9]

I’m working on adding a minimap feature to the Filament v4 Rich Editor.

The plan is as follows:

1. First, I’ll create a custom Tiptap extension.
2. Then, I’ll integrate it with Filament’s Rich Editor.
3. Finally, I’ll build a UI component for the minimap.

The core idea is to generate an image representation of the Tiptap editor content.
For image rendering, I’m considering using this library: https://github.com/zumerlab/snapdom

I’m currently deciding whether to release this as a standalone Filament plugin or submit it as a pull request to be included in the core Filament package.

What do you think about this idea?