Bug 32263: Fix capitalization for "...and on the Libraries page in the OPAC."

Bug 32263: Fix capitalization for "...and on the Libraries page in the OPAC."

Small fix to correct the capitalization in library editing mode to
display "...and on the libraries page in the OPAC.".

To Test:
1. apply patch
2. navigate to Administration -> Libraries
3. edit any library
4. confirm that the note underneath the option for "Public" now
   displays with the correct capitalization ("... on the libraries
   page...")

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>