Grey out immoveable blocks

Is your feature request related to a problem? Please describe.

Some blocks can’t be moved/deleted, like the Title and Type/Author block below it.

If you hover them, they highlight just like any other block. This makes it look like they can be moved.

Describe the solution you’d like

Grey them out maybe?

Additional context

I like the fact that every element in a “page” is a Block. Hopefully in the future users will have more control over which of them can be “locked” (or “unlocked”).

The fact that the title is a Block (with everything inside it being its children) also gives me hope that eventually everything in Anytype will be treated as a block, as I describe here: