add phrases for the catalan (CA) locale
add phrases for the catalan (CA) locale

refs FOO-519
flag = none

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| TEST PLAN
| ---- ----

none, the actual support for the language will come in a different patch

Change-Id: Icb3383d83447f13fd579bc5011f38fafa5513e7a
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/245531
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>
QA-Review: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>
Product-Review: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>

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