wordwrap submission links in speedgrader
wordwrap submission links in speedgrader

test plan:
* submit a really long file for an assignment
* in speedgrader it should wrap the file name
 (instead of stretching past the edge)

closes #CNVS-24696

Change-Id: Ie84d7fb51b97654e9db5d005693651fcdbca0bfe
Reviewed-on: https://gerrit.instructure.com/66282
Tested-by: Jenkins
Reviewed-by: Clay Diffrient <9dff2e5c98626d20d2848250c411e8009465bb87@instructure.com>
QA-Review: Ryan Allen <b65b638b3333142073650bd017e5f36609bed2c6@instructure.com>
Product-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

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