ref(vuebugger): properly type ImportMeta

Author: vinpogo

packages/vuebugger/src/env.d.ts

@@ -1,9 +1,7 @@
-/// <reference types="vite/client" />
-
 interface ImportMetaEnv {
-  readonly DEV: boolean
+  readonly DEV?: boolean
 }
 
 interface ImportMeta {
-  readonly env: ImportMetaEnv
+  readonly env?: ImportMetaEnv
 }