Bug 31066: Update javascript to use 'text_plugin' type for regex option

Bug 31066: Update javascript to use 'text_plugin' type for regex option

To test:
 1 - Confirm 952$o is not linked to a plugin in the default marc framework
 2 - Send some tiems to batch modification
 3 - Confirm you can select RegEx as an option for callnumber during modification
 4 - Link 952$o to the cn_browser.pl plugin
 5 - Repeat batch modification
 6 - Note there is no regex option
 7 - Apply patch
 8 - Confirm there is a regex option
 9 - Unlink 952$o from plugin
10 - Confirm you still have a regex option in batch modification

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>