Update jest.setup.ts

Author: setchy

src/renderer/__helpers__/jest.setup.ts

@@ -1,6 +1,6 @@
 import { TextDecoder, TextEncoder } from 'node:util';
 
-// Prevent "ReferenceError: TextEncoder is not defined" error
+// Prevent "ReferenceError: TextEncoder is not defined" or "ReferenceError: TextDecoder is not defined" errors
 global.TextEncoder = TextEncoder;
 global.TextDecoder = TextDecoder;