Fix button focus on ParamsInputDialog

[d-gs]

Type of request

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Refactoring
• Documentation or documentation changes

Concept

Fix focus to be on OK button instead of CANCEL.

Checklist:

• All the commits are signed.
• My code follows the code style of this project.
• I agree with die CLA.
• I have read the CONTRIBUTING docs.
• I have added/updated necessary documentation (if appropriate).