I should be able to specify that a _linkButton is disabled

(User Story, Investigate , Priority: High, Test Status: No automated tests yet , Reported By Bad Link: Thing 3y284oe not found, )

Functions

Summary: Eric would like to be able to show navigation buttons that are always there, but disabled for the current page. It's a reasonable desire.

For the time being, there is a workaround: write the HTML out by hand. (This is enabled by I should be able to specify that an HTML element is disabled.) But it would be nice to have a more Querki-native solution.

This should probably be thought of in broader terms, though: we should provide a way for any appropriate node to be disabled. For example, _edit() should also be disableable, at least in theory. So think about how this is exposed -- it might be a parameter on _linkButton, but it might be a modifier function instead, a la _class().