fix gigantic social icons in login information view
fix gigantic social icons in login information view

Fixes: CNVS-32482

test plan:
- setting the stage on the account side: need to have twitter
  set-up as a way of logging into your local canvas
- setting the stage on the user side: a student needs to have
  a twitter account set-up in order to login
  [instructions for setting that up: create a new test account
  on twitter, then in the same browser that user is logged in,
  you go and create a twitter app at https://apps.twitter.com
  Once you create the app you get the consumer key and secret
  and plug that into an authentication provider in canvas at
  accounts/X/authentication_providers... There's also a place
  in the twitter app you have to plugin a callback URL, which
  you can grab from the Twitter auth provider description when
  you're setting it up (it will be similar to:
  http://canvas.dev/login/oauth/callback) you also want to
  check the box in the canvas auth provider for "Just in
  Time Provisioning"... once you've got ALL that setup, then
  you can go to the login page for your canvas app and click
  the twitter icon and if you're already logged in to twitter
  in the same browser, it should auto-create that twitter account
  as a user in canvas]
- back on the admin view click into the account and search for the
  twitter user from the people tab... you should now see their
  login details and the social icon should no longer be huge
  (see screeshot on the ticket) - updated view should look like
  this: http://screencast.com/t/R8IVHjTT

Change-Id: Ic1c517b0f16e063d143b58eb6b52a544077a5d71
Reviewed-on: https://gerrit.instructure.com/92182
Tested-by: Jenkins
Reviewed-by: Jennifer Stern <7e594e5cba47371ac9ee694a84b9d94f9f6ec815@instructure.com>
Product-Review: Pam Hiett <7b533437add1ce4ea4ed79979fa88e0e484e554b@instructure.com>
QA-Review: Pierce Arner <de38b793164d9bfa12fc4185260c174139808169@instructure.com>

instructure/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,SwinburneOnline/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,HotChalk/canvas-lms,instructure/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,HotChalk/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms