Improve compatibility between Xray and Xsquash modifying cucumber scenario fields

Current behaviour 
When using both Xray and Xsquash (Agile testing with OSS Squash), conflicts occur when interacting with the Cucumber Scenario custom field:

• Text pasted into the field gets duplicated

• Deleting one character deletes two

• Copying content from the field only captures two lines at a time

These issues appear to stem from how both plugins interact with the same UI component. Currently, Xray does not guarantee compatibility with third-party apps that modify shared custom fields.

Expected behaviour 
Consider evaluating potential conflicts with popular third-party plugins and improving isolation of Xray's field interactions to avoid unexpected behavior.