✨(frontend) new Form components

- improve the Form component to abstract the few things we'll certainly
do all the time (data parsing, action buttons rendering)
- add a Field component, the main way to render form fields. It mainly
wraps react aria components with our styling. The Checkbox component is
a bit tricky to go around some current limitations with react aria

src/frontend/panda.config.ts

@@ -233,7 +233,7 @@ const config: Config = {
         paragraph: { value: '{spacing.1}' },
         heading: { value: '{spacing.1}' },
         gutter: { value: '{spacing.1}' },
-        textfield: { value: '{spacing.0.5}' },
+        textfield: { value: '{spacing.1}' },
       },
     }),
     textStyles: defineTextStyles({