Description of problem:
Strings longer than 50 characters cannot be entered into the "Specify host values" text box on an Embedded Ansible playbook method. This is a problem for the substitutions that are needed to set the IP address of the VM being provisioned.

For example the substitution string:
    ${/#service_template_provision_task.destination.vms.first.ipaddresses.first}

will get the IP address of a Orchestration Template service that is being ordered, but it is longer than 50 characters so it cannot be used.

Version-Release number of selected component (if applicable):
5.9.2.4

How reproducible:
Always

Steps to Reproduce:
1. Enable the Embedded Ansible provider and add a repository with a playbook
2. Navigate to Automation -> Automate -> Explorer
3. Create a Method of type playbook
4. Click the "Specify host values" checkbox for the Host
5. Attempt to enter more than 50 characters.

Actual results:
Only the first 50 characters can be entered

Expected results:
All necessary characters can be entered. The sample string is 70 characters

Additional info:
This field should be like the "Default value" text box for Input Parameters. There doesn't appear to be a limit on this field (I've been able to add over 150000 characters to it. It would be nice if the box was also wider and resizable or maybe a text area box so the string can be seen.

The "Default value" text box for Input Parameters takes a long string I'm not sure how long, but