Bug 16642 - Fix capitalisation for upload patron image

Bug 16642 - Fix capitalisation for upload patron image

To fix capitalisation on the staff interface when patronimages is turned on.

Test plan:
1. In staff interface. Turn on patronimages sys preference.
2. Go to a patron without an image and check that the "Upload
 patron image" box heading now has correct capitalisation.
3. Go to a patron with an image already uploaded and check the
 "Manage patron image" box heading has correct capitalisation.

Signed-off-by: Sofia <szapoun@lib.auth.gr>
Signed-off-by: Katrin Fischer  <katrin.fischer@bsz-bw.de>
Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>