Fully qualify deep linking concern module
Fully qualify deep linking concern module

Closes PLAT-5834
flag=none

Test Plan:
Verify you can succesfully return content items via deep linking
at the link_selection placement.

Change-Id: I3dd5cf3e6ab58512124491b1ce45c56246fae6fc
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/239403
Reviewed-by: Xander Moffatt <27f70fe194da423604e6e0a63a3de19814736fa9@instructure.com>
QA-Review: Xander Moffatt <27f70fe194da423604e6e0a63a3de19814736fa9@instructure.com>
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Product-Review: Weston Dransfield <e9203059795dc94e28a8831c65eb7869e818825e@instructure.com>

sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms