feature-8980: Badge creation in wizard misses default options

[nnhathung]

font style options

Fixes #fossasia/open-event-frontend#8994

Short description of what this resolves:

• Badge creation in wizard misses default options

Changes proposed in this pull request:

• add default for badge creation

Checklist

• I have read the Contribution & Best practices Guide and my PR follows them.
• My branch is up-to-date with the Upstream development branch.
• The unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

• All the functions created/modified in this PR contain relevant docstrings.

[khangon]

Hi @norbusan , @mariobehling , @cweitat ,
We have completed ticket fossasia/open-event-frontend#8980
Please help me check and verify.
Thanks,