feat(reactivity-transform/types): restructure macro types + export types for all shorthand methods

packages/reactivity/src/index.ts

@@ -14,7 +14,8 @@ export {
   UnwrapRef,
   ShallowRef,
   ShallowUnwrapRef,
-  RefUnwrapBailTypes
+  RefUnwrapBailTypes,
+  CustomRefFactory
 } from './ref'
 export {
   reactive,

packages/reactivity/src/ref.ts

@@ -151,7 +151,7 @@ export function proxyRefs<T extends object>(
     : new Proxy(objectWithRefs, shallowUnwrapHandlers)
 }
 
-type CustomRefFactory<T> = (
+export type CustomRefFactory<T> = (
   track: () => void,
   trigger: () => void
 ) => {