FIO-8518 fixed adding checkbox with radio type to pdf design page

[HannaKurban]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-8518

Description

Fixed an issue when Checkbox (Radio type) Component can be added more than one time to the PDF Designer page. The code was upgraded and the duplication was removed

Breaking Changes / Backwards Compatibility

n/a

Dependencies

n/a

How has this PR been tested?

all test pass locally

Checklist:

• I have completed the above PR template
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above