[FR]: Allow stylizing the shared note

[Mara-Li]

Hello!
I use special callout that use float. In my obsidian and my width workflow, they look perfect.

But, on the website, i think some width need to be stylized using snippets, for reader to get more space etc.

I checked the css, but can't find any option / class specific to the shared note, so my snippets won't interfere on my obsidian.

So my FR is :

• Set a custom class in body to allow this (for example shared-note )
• Or allow to upload a specific css with the note, but not an enabled snippets.