update de translation
update de translation

Change-Id: I4e09e22a51064f0de2226d34bbc0bacb6cea4be7
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/249021
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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