Wait for dom-ready in modules progressions
Wait for dom-ready in modules progressions

closes LS-2953
flag = none

Test plan:
 - Before checking out PS, reproduce the issue by doing the following:
 - Create a course with 2 modules and 2 assignments in each module
 - Add requirements to both modules
 - Publish the course, modules, and items
 - Add a student to the course
 - In Chrome 97, visit /courses/x/modules/progressions
 - Refresh a few times until you see the page load without content in
   the middle
 - Checkout the PS - refresh several times and expect the page content
   to load consistently

Change-Id: I430972813d6e9e0ba5558ea85abfe806119b2ddf
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/283153
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Eric Saupe <e7287cf05ae62bc45889f17a9d34b8fae8d5afd1@instructure.com>
QA-Review: Eric Saupe <e7287cf05ae62bc45889f17a9d34b8fae8d5afd1@instructure.com>
Product-Review: Jackson Howe <318c10a818c1b1f2ec50cdcb1827b2c6c5ebd7dc@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms