Bug 9818: Fixing capitalization and remove dollar sign

Bug 9818: Fixing capitalization and remove dollar sign

Overdue Fines Cap ($) > Overdue fines cap (amount)

To test:
Go to administration > circulation and fine rules
Check column label Overdue fines cap now follows capitalization rules
and has no dollar sign.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
(cherry picked from commit 44a8ed7dec205dd264797ecf2638fea7f1ea67c8)

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>