fix: added emits property to Vue components (#199)

packages/@headlessui-vue/src/components/listbox/listbox.ts

@@ -71,6 +71,7 @@ function useListboxContext(component: string) {
 
 export const Listbox = defineComponent({
   name: 'Listbox',
+  emits: ['update:modelValue'],
   props: {
     as: { type: [Object, String], default: 'template' },
     modelValue: { type: [Object, String, Number, Boolean], default: null },

packages/@headlessui-vue/src/components/switch/switch.ts

@@ -48,6 +48,7 @@ export const SwitchGroup = defineComponent({
 
 export const Switch = defineComponent({
   name: 'Switch',
+  emits: ['update:modelValue'],
   props: {
     as: { type: [Object, String], default: 'button' },
     modelValue: { type: [Object, Boolean], default: null },