fix(vue): Set initial value of clientCtx to undefined (#5324)

Author: Dorilama

.changeset/fuzzy-pillows-doubt.md

@@ -0,0 +1,5 @@
+---
+'@clerk/vue': patch
+---
+
+Bug fix: Update the initial value of `clientCtx` to `undefined` to correctly infer that `clerk` is defined.(https://github.com/clerk/javascript/pull/5324#discussion_r1989445357)

packages/vue/src/plugin.ts

@@ -36,7 +36,7 @@ export const clerkPlugin: Plugin = {
     const clerk = shallowRef<Clerk | null>(null);
 
     const resources = ref<Resources>({
-      client: {} as ClientResource,
+      client: undefined as unknown as ClientResource,
       session: undefined,
       user: undefined,
       organization: undefined,