♻️ Replace form components

[AntoLC]

Purpose

Replace Grommet form components with Cunningham form components.

Proposal

• [x] refacto LicenseSelect component
• [x] replace checkbox components
• [x] replace pagination components

Before merging

• [x] https://github.com/openfun/cunningham/issues/175

Checkbox change

Before

After

Pagination change

Before

After

[AntoLC]

When we switch MDX or Mathjax, we get this error, which does not happen on master:

Indeed.

d031660