feat: support smaller field bounds (#1344)

Currently this won't always display super well since
our insertion solution isn't amazing but our current
minimum bounds within the UI are a bit large and can be
smaller.

This change makes it smaller and uses container queries to
support dynamically displaying labels based on the container
size.

packages/ui/primitives/template-flow/add-template-fields.tsx

@@ -65,8 +65,8 @@ const fontCaveat = Caveat({
   variable: '--font-caveat',
 });
 
-const MIN_HEIGHT_PX = 40;
-const MIN_WIDTH_PX = 140;
+const MIN_HEIGHT_PX = 20;
+const MIN_WIDTH_PX = 80;
 
 export type AddTemplateFieldsFormProps = {
   documentFlow: DocumentFlowStep;