keep columns regular on course settings users tab
keep columns regular on course settings users tab

test plan:

* add lots of users to a particular category,
 enough to trigger pagination
* then on the course settings users tab,
 scroll all the way down (to get the
 "loading more results" message)
* the column should not expand and
 push the other column

Change-Id: Ib67341c54a92f1f0dd063ec68bfc85f53c884cb3
Reviewed-on: https://gerrit.instructure.com/16285
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>
QA-Review: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>

sdeleon28/canvas-lms,leftplusrightllc/canvas-lms,leftplusrightllc/canvas-lms,efrj/canvas-lms,wimemx/Canvas,nditech/red-innovadores-lms,sli7246/canvas_branch,roxolan/canvas-lms,tgroshon/canvas-lms,shidao-fm/canvas-lms,grahamb/canvas-lms,landonwilkins/canvas-lms,jay3126/canvas-lms,eCNAP/CANVAS,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,sli7246/canvas_branch,rup/Tarrax,matematikk-mooc/canvas-lms,tgroshon/canvas-lms,arrivu/qibla-ecampus,wimemx/Canvas,Rvor/canvas-lms,whalejasmine/canvas-lms,usmschuck/canvas,roxolan/canvas-lms,djbender/canvas-lms,narigone/canvas,gbleydon/canvas-lms,ShreniiNepal/shrenii_lmp,HotChalk/canvas-lms,instructure/canvas-lms,usmschuck/canvas,merichar/canvas-lms,Unow/canvas-lms,samuels410/greatlakes-lms,antoniuslin/canvas-lms,arrivu/qibla-ecampus,landonwilkins/canvas-lms,arrivu/hoodemo,ShreniiNepal/shrenii_lmp,fronteerio/canvas-lms,fronteerio/canvas-lms,snehakachroo1/LSI_replica,Rvor/canvas-lms,eCNAP/CANVAS,sfu/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,dgynn/canvas-lms,narigone/canvas,loganrun/pincan,Rvor/canvas-lms,utkarshx/canvas-lms,greyhwndz/canvas-lms,wimemx/Canvas,sli7246/canvas_branch,djbender/canvas-lms,arrivu/jigsaw-lms,landonwilkins/canvas-lms,samuels410/greatlakes-lms,HotChalk/canvas-lms,redconfetti/canvas-lms,whalejasmine/canvas-lms,juoni/canvas-lms,greyhwndz/canvas-lms,instructure/canvas-lms,Unow/canvas-lms,ShreniiNepal/shrenii_lmp,Unow/canvas-lms,efrj/canvas-lms,Unow/ins,nditech/red-innovadores-lms,venturehive/canvas-lms,antoniuslin/canvas-lms,jay3126/canvas-lms,sfu/canvas-lms,shidao-fm/canvas-lms,snehakachroo1/LSI_replica,SwinburneOnline/canvas-lms,Jyaasa/canvas-lms,kyroskoh/canvas-lms,instructure/canvas-lms,wye0220/shindig-canvas,va7map/canvas-lms,arrivu/arrivu-lms,merichar/canvas-lms,whalejasmine/canvas-lms,samuels410/greatlakes-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,shidao-fm/canvas-lms,instructure/canvas-lms,leftplusrightllc/canvas-lms,nditech/red-innovadores-lms,fronteerio/canvas-lms,wye0220/shindig-canvas,wrdsb/canvas-lms,arrivu/hoodemo,antoniuslin/canvas-lms,Unow/ins,snehakachroo1/LSI_replica,sdeleon28/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,juoni/canvas-lms,rup/Tarrax,loganrun/pincan,greyhwndz/canvas-lms,utkarshx/canvas-lms,redconfetti/canvas-lms,Unow/ins,skmezanul/canvas-lms,usmschuck/canvas,va7map/canvas-lms,AndranikMarkosyan/lms,dgynn/canvas-lms,grahamb/canvas-lms,shidao-fm/canvas-lms,instructure/canvas-lms,parbros/red-innovadores-lms,roxolan/canvas-lms,kyroskoh/canvas-lms,wrdsb/canvas-lms,utkarshx/canvas-lms,leftplusrightllc/canvas-lms,skmezanul/canvas-lms,jay3126/canvas-lms,landonwilkins/canvas-lms,grahamb/canvas-lms,parbros/red-innovadores-lms,skmezanul/canvas-lms,arrivu/hoodemo,narigone/canvas,snehakachroo1/LSI_replica,tgroshon/canvas-lms,Jyaasa/canvas-lms,arrivu/jigsaw-lms,nditech/red-innovadores-lms,sdeleon28/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,arrivu/arrivu-lms,instructure/canvas-lms,venturehive/canvas-lms,arrivu/qibla-ecampus,venturehive/canvas-lms,AndranikMarkosyan/lms,whalejasmine/canvas-lms,usmschuck/canvas,tgroshon/canvas-lms,Jyaasa/canvas-lms,eCNAP/CANVAS,HotChalk/canvas-lms,narigone/canvas,AndranikMarkosyan/lms,matematikk-mooc/canvas-lms,va7map/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,wrdsb/canvas-lms,gbleydon/canvas-lms,ShreniiNepal/shrenii_lmp,samuels410/greatlakes-lms,kyroskoh/canvas-lms,juoni/canvas-lms,dgynn/canvas-lms,skmezanul/canvas-lms,sfu/canvas-lms,Rvor/canvas-lms,loganrun/pincan,instructure/canvas-lms,wye0220/shindig-canvas,efrj/canvas-lms,antoniuslin/canvas-lms,efrj/canvas-lms,arrivu/jigsaw-lms,kyroskoh/canvas-lms,sfu/canvas-lms,jay3126/canvas-lms,roxolan/canvas-lms,sdeleon28/canvas-lms,rup/Tarrax,AndranikMarkosyan/lms,redconfetti/canvas-lms,eCNAP/CANVAS,sfu/canvas-lms,wrdsb/canvas-lms,parbros/red-innovadores-lms,djbender/canvas-lms,gbleydon/canvas-lms,sfu/canvas-lms,greyhwndz/canvas-lms,dgynn/canvas-lms,juoni/canvas-lms,arrivu/arrivu-lms,va7map/canvas-lms,utkarshx/canvas-lms,merichar/canvas-lms,fronteerio/canvas-lms,Jyaasa/canvas-lms