Transform code base to typescript

Change-Id: Ia1f862fb5962ddd54b8d7643abbc39bb314d1f8e

jest.config.ts

@@ -0,0 +1,13 @@
+import type { JestConfigWithTsJest } from "ts-jest";
+
+const config: JestConfigWithTsJest = {
+  preset: "ts-jest",
+  testEnvironment: "jsdom",
+  collectCoverage: true,
+  coveragePathIgnorePatterns: ["node_modules", "dist"],
+  coverageDirectory: "<rootDir>/coverage/",
+  coverageReporters: ["html", "text", "text-summary", "cobertura"],
+  extensionsToTreatAsEsm: [".ts", ".tsx"],
+  setupFilesAfterEnv: ["<rootDir>/src/jest.setup.ts"],
+};
+export default config;