fix: handle missing raw setup state

When setup function returns render function there's no devtoolsRawSetupState and setupState is empty. When the same component exposes some data the loop will try to access it from the `raw` const. To prevent accessing property of undefined we'll default `raw` to an empty object.

fixes vuejs#2123

packages/app-backend-vue3/src/components/data.ts

@@ -177,7 +177,7 @@ function processState(instance) {
 }
 
 function processSetupState(instance) {
- const raw = instance.devtoolsRawSetupState
+ const raw = instance.devtoolsRawSetupState || {}
  const combinedSetupState = (Object.keys(instance.setupState).length
  ? instance.setupState
  : instance.exposed