adjust margin so the % symbol is visible

[deltreey]

Please check if the PR fulfills these requirements:

• The commit message follows our guidelines.
• For bug fixes and features:
  • You tested the changes.

Related issue (if applicable): #619

What kind of change does this PR introduce?
Margin Change

Does this PR introduce a breaking change?
No

New feature or change

What is the current behavior?
% symbol not visible on Dice Example on Modulo Page.

What is the new behavior?
% symbol is now visible

Other information

[deltreey]

I'm looking around and can't seem to find the godot commit message guidelines

[NathanLovato]

Thanks much, but as mentioned in #619, I'd like us to find a more general way to mitigate this text wrapping issue, which can happen with anything, until we can port the app to Godot 4.