[JIRAALIGN-1809] Jira Connector: NextGen states should not be listed for non-NextGen projects in the JA to Jira state mapping section

Issue Summary

Since the NextGen states are unique for the project and cannot be transferred to the other projects such states should not be listed in the state mapping section of the non-NextGen projects to avoid confusion.

Steps to Reproduce

There should be a NextGen and non-NextGen projects configured and synced with the JA. The projects should also have the states configured. 

1. Open JA to Jira state mappings for non-NextGen project
2. Validate if the NextGen states are available for selection in the dropdown

Expected Results

NextGen states are not available for selection in the dropdown

Actual Results

State mapping includes all states from the Jira instance

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available