add a fancy jest config for typescript

Author: CluEleSsUK

jest.config.mjs

@@ -0,0 +1,11 @@
+export default {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  extensionsToTreatAsEsm: [".ts"],
+  transform: {
+    "^.+\\.(ts|tsx)$": ["ts-jest", {
+      useESM: true,
+    }],
+  },
+  testTimeout: 50000,
+};