feat: relation field and picker

web/src/views/__tests__/SchemaBuilderView.spec.ts

@@ -160,7 +160,7 @@ describe('New type, desktop (design state 1)', () => {
 		expect(copy).toContain(
 			'The name used in the API. Starts with a letter. Lowercase letters, digits and underscores.',
 		)
-		expect(all('[role="radio"]')).toHaveLength(7)
+		expect(all('[role="radio"]')).toHaveLength(8)
 		expect(el('[role="radio"][aria-checked="true"]')!.closest('label')!.textContent).toContain(
 			'Text',
 		)