Add progress button an styles

fixes CNVS-15804

Just adds a button link to the upload progress with styles

Test Plan
Given you're using new files
Upload a file or folder
When progress loads, you should see an x next to the progress bar
It should be accessible

Change-Id: I667a2c9162208c319515dd0323e3b219dfa03b0d
Reviewed-on: https://gerrit.instructure.com/42301
Reviewed-by: Dan Minkevitch <dan@instructure.com>
Product-Review: Cosme Salazar <cosme@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Sterling Cobb <sterling@instructure.com>