LP#1860351: fix hasWorkPermHere() in Angular client

LP#1860351: fix hasWorkPermHere() in Angular client

Fixes a bug where the Angular client's hasWorkPermHere() check
could return incorrect results and thus incorrectly report
whether or not the staff user currently has particularl permissions
at their current workstation.

To test
-------
[1] Arrange for a workstation whose internal ID is larger than
    any of the org unit IDs.
[2] Log in to that workstation with a user who has permission
    to update monograph parts.
[4] In the experimental Angular staff catalog, go to a record
    (e.g., /eg2/en-US/staff/catalog/record/21/monoparts) and note
    that the New Monograph Part button is disabled.
[5] Apply the patch and repeat step 4. This time, the button
    should be active.

Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>