[Pages] Display any page/module "Assign To" availability dates on index pages

Problem statement:

With the new "Assign To" feature available for individual pages and modules, faculty have found themselves accidentally adding availability dates to things they don't intend to. These availability dates aren't visible or otherwise marked as enabled in any index pages.

Proposed solution:

As an instructional designer and for the benefit of all users' quick troubleshooting, it'd be great to have a small tag or text on the page or module at the index level that notes if there are availability dates set. Just a small note similar to what we have for assessments' due dates/points and the module "lock until" status would be a huge benefit to add to pages and modules with any "Assign To" restrictions. That, or something like what Mastery Paths does when an object is added to a path.

User role(s):

admin,instructor,designer