Duplicate patron notice template names allowed - case is not considered in validation

Steps to Reproduce:

1. Go to Settings > Circulation > Patron notice templates
2. Select "New"
3. Create a template named "test" (complete all required fields)
4. Create a template named "Test" (complete all required fields)

Expected Results:
Upon creating any new template, it should not allow duplicate names. Case does not matter so test, Test and TEST should be considered duplicate.

Actual Results:
Case is not considered so test, Test and TEST are all allowed and not considered duplicates.