fix: process undefined checks in vite

Author: gregfromstl

packages/thirdweb/src/utils/process.ts

@@ -1,5 +1,6 @@
 export const IS_DEV =
-  process &&
+  typeof process !== "undefined" &&
+  process.env &&
   (process.env.NODE_ENV === "development" || process.env.NODE_ENV === "test");
 
-export const IS_TEST = process && process.env.NODE_ENV === "test";
+export const IS_TEST = typeof process !== "undefined" && process.env && process.env.NODE_ENV === "test";