feat: tup-616 c-button migration

[wesleyboar]

Important Merged into wrong branch. Expect a new PR to replace this one.

Overview

Migrate button styles from TUP-CMS.

Related

• TUP-616
• required by https://github.com/TACC/tup-ui/pull/343

Changes

• changed c-button to load after django-cms-forms (see 3256a83 for explanation)
• changed styles to c-button

Testing

1. Create a page.
2. Add a button.
3. Test that the button style matches buttons on TACC CMS.

UI

before bug fix before button change	before bug fix after button change	after bug fix after button change

Notes

This was supposed to be a migration to core-styles, but Wes was wrong. It belongs in Core-CMS. H.P. confirmed it.

Sample HTML

I copied this from https://tacc.utexas.edu/static/ui/components/detail/c-button--primary.html source. ```html

States

<button>

default --is-busy

<a>

default --is-busy

 

Icons

<button>

… __icon--before __icon--after X

<a>

… __icon--before __icon--after X

 

Width

<button>

--width-short --width-medium --width-long

<a>

--width-short --width-medium --width-long

 

Size

(no small size allowed)

 

```