disable buttons prototype for legacy and beta instr dash

[adampalay]

Disables buttons on the instructor dash that don't work for large courses (>500 here).

Adds a note that these buttons are for smaller courses only, and a subheading that they are disabled for larger courses. The subheading turns red for large courses.

@sarina @flowerhack @marcotuts

[sarina]

What is this line for?

[sarina]

Functionally this works but I don't like most of the added text.

Hopefully Marco can add to/augment my comments. Marco, here's a screenshot of what one of these areas looks like (this is a small course):

[adampalay]

@flowerhack and @marcotuts ,

can you take a look?

[flowerhack]

This looks good to me.

[sarina]

@adampalay can you post some screenshots of what things look like where you've made changes? I think that helps Marco review things faster.

[marcotuts]

While that is true, I'll review this now :)

[marcotuts]

I think we'll want to remove all inline styles from this over to the appropriate .scss file, I'll note every instance of that below.

[adampalay]

some screenshots:

[sarina]

I like it! Maybe add something nice at the end like "Thank you for your patience as we continue working to improve your user experience!" or something.

[adampalay]

@talbs , thanks for the new sass rules. For some reason, they're not working on the beta dash: https://github.com/edx/edx-platform/blob/0ccf0cd14c9a61cceda7723baf70bbf2de666b9d/lms/templates/instructor/instructor_dashboard_2/data_download.html#L7-L19

Here's a screenshot:

[sarina]

👍

[shnayder]

Can we make these small copy tweaks please:

Note: some of these buttons are known to time out for larger "

•   "courses. We have temporarily disabled those features for courses "
  

•          "with more than {max_enrollment} students. We are urgently working on "
  

•          "fixing this issue. Thank you for your patience as we continue "
  

•          "working to improve the platform!
  

[adampalay]

@shnayder , updated the message.

[shnayder]

@adampalay Thanks, looks good.