Storyshots: Inject args into Vue story component's props

addons/storyshots/storyshots-core/src/frameworks/vue/renderTree.ts

@@ -1,6 +1,10 @@
 // eslint-disable-next-line import/no-extraneous-dependencies
 import Vue from 'vue';
 
+// this is defined in @storybook/vue but not exported,
+// and we need it to inject args into the story component's props
+const VALUES = 'STORYBOOK_VALUES';
+
 function getRenderedTree(story: any) {
   const component = story.render();
 
@@ -10,6 +14,9 @@ function getRenderedTree(story: any) {
     },
   });
 
+  // @ts-ignore
+  vm[VALUES] = story.args;
+
   return vm.$mount().$el;
 }