support view-only mode under collaboration edit

User Story

• As an end-user, I just need to receive sheet updates instead of editing a sheet under collaboration mode, so that I don't change the sheet accidentally. Other collaborators can edit the sheet.

Current Problems

If a developer enables sheet protection, then all collaborators can't edit a Book since sheet protection affects the whole Book, the Book is shared among all collaborators.

Hence, there is no way to make the same Book read-only for some collaborators and editable for another collaborator.

Proposed Solution

• a read-only feature on spreadsheet component scope. Maybe we can implement such read-only internally based on how sheet protection makes a sheet read-only.