🎨 Palette: Standardize CustomCheckbox with grid and accessibility props

[godie]

💡 What: Enhanced the CustomCheckbox component to support Materialize grid props (s, m, l, xl, offset), required indicator (visual asterisk and aria-required), and helperText (with aria-describedby).
🎯 Why: To improve UI consistency across form components, simplify layout code in Profile and AnswerForm, and enhance accessibility for screen reader users.
♿ Accessibility: Added aria-required and aria-describedby support.
Refactored Profile.jsx and AnswerForm.jsx to leverage these new props, reducing boilerplate and improving semantic structure. Fixed a minor linting issue in PlayerCasoContainer.jsx.

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PR created automatically by Jules for task 6267069839876251188 started by @godie

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