Fix ts-jest tsconfig override

Author: ezzatron

jest.config.js

@@ -2,9 +2,7 @@ import config from "@snout/jest-config";
 
 export default {
   ...config,
-  globals: {
-    "ts-jest": {
-      tsconfig: "test/tsconfig.json",
-    },
+  transform: {
+    "\\.tsx?$": ["ts-jest", { tsconfig: "test/tsconfig.json" }],
   },
 };