show bouncing channel icon for single channels
show bouncing channel icon for single channels

fixes CNVS-20515

test plan
- as a user with one communication channel, cause the channel to
 be flagged as bouncing (set cc.bounce_count to 10 in the console)
- view the user settings page
- ensure that you see a bouncing channel error icon next the
 channel's address on the right side bar

Change-Id: I7ccafb748d44581172829b233718ca072555dbc0
Reviewed-on: https://gerrit.instructure.com/54353
Tested-by: Jenkins
Reviewed-by: Andrew Butterfield <c9c7a32d9a1e9779cfad12bed963960e7af36eac@instructure.com>
QA-Review: Steven Shepherd <e794458448443812fb2685675aab3bbd1a3891bc@instructure.com>
Product-Review: Joel Hough <4816dabf8db1bc6cac35b3a24cab2ff844b5b0c7@instructure.com>

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