webadmin: SetupNetwork- long network names shouldn't break the layout

Adding '...' to long network names that break the layout.

Change-Id: Ife6ef384a5eac71398b397d8475ec312ed97eeb5
Bug-Url: https://bugzilla.redhat.com/1133598
Signed-off-by: Alona Kaplan <alkaplan@redhat.com>
(cherry picked from commit b970ff0d12579e6894abb18db77b899625fe64c5)