update nl translation
update nl translation

Change-Id: I9dfca2c3e73c37da9b2ecf310e7e1f45634a7901
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/261230
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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