Bug 15005: Replace $ENV{SCRIPT_NAME} with the hardcoded script paths

Bug 15005: Replace $ENV{SCRIPT_NAME} with the hardcoded script paths

Since I don't manage to make SCRIPT_NAME works directly with RequestHeader and/or
ReverseProxyPath, the easier way it to fix all the different occurrences.

Test plan:
On the import patrons page, confirm that the "Import" button does not redirect to a 'Not found' page.
You should stay on the import patrons page.

Note that if this change works, all others should work too.
Have a look at the diff of this patch and confirm there is no typo.

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Tested in patron import and item batch modification

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>