fix(types): augment ref unwrap bail types in appropriate packages

Packages can now augment the ref unwrap bail types in their own `d.ts`.
Also updated the build script to auto concat any files in a package's
`types` directory to the final generated `d.ts`.

- `@vue/reactivity` should no longer require `libs: ["DOM"]` in tsconfig
- Properly bail on `VNode` and `ComponentPublicInstance` in runtime-core

packages/runtime-dom/package.json

@@ -18,9 +18,6 @@
       "esm-browser",
       "cjs",
       "global"
-    ],
-    "dts": [
-      "jsx.d.ts"
     ]
   },
   "repository": {