fix: fix modal resolver to access actual component

src/components/shows/AddShowButton.vue

@@ -34,7 +34,7 @@ const { isSuperuser } = useAuthStore()
 const { t } = useI18n()
 
 const addShowModal = ref<Modal>()
-const resolvedModal = computed(() => (props.modal ?? addShowModal) as unknown as Modal)
+const resolvedModal = computed(() => (props.modal ?? addShowModal.value) as Modal)
 const loaded = computed(() => ({
   types: store.state.shows.loaded.types,
   fundingCategories: store.state.shows.loaded.fundingCategories,