chore: prettier all ts code

src/mixins/portal.ts

@@ -17,7 +17,7 @@ function getElement(selector: string | GetContainer): Element | null {
 export function PortalMixin({ ref, afterPortal }: PortalMixinOptions) {
   return Vue.extend({
     props: {
-      getContainer: [String, Function] as (PropType<string | GetContainer>),
+      getContainer: [String, Function] as PropType<string | GetContainer>,
     },
 
     watch: {
@@ -33,7 +33,7 @@ export function PortalMixin({ ref, afterPortal }: PortalMixinOptions) {
     methods: {
       portal() {
         const { getContainer } = this;
-        const el = ref ? this.$refs[ref] as HTMLElement : this.$el;
+        const el = ref ? (this.$refs[ref] as HTMLElement) : this.$el;
 
         let container;
         if (getContainer) {