fix(types): export ComponentOptionsMixin (#1361)

cexbrayat · web-flow · commit 68e2d6c68a4e · 2020-06-15T11:13:00.000-04:00
The newly introduced `ComponentOptionsMixin` was not re-exported.
diff --git a/packages/runtime-core/src/index.ts b/packages/runtime-core/src/index.ts
@@ -159,6 +159,7 @@ export {
 } from './component'
 export {
   ComponentOptions,
+  ComponentOptionsMixin,
   ComponentOptionsWithoutProps,
   ComponentOptionsWithObjectProps,
   ComponentOptionsWithArrayProps,
