Migrate all tests to TypeScript (#19)

* Merge 2 npm repos

* Install ts-jest

* Update jestconfig

* Fix jest types

* jest fix

* Fix babel config ref issue

* Fix import

* Fix import meta issue

* fix generate

* Skip multi-user tests

jest.config.ts

@@ -0,0 +1,21 @@
+import type { JestConfigWithTsJest } from "ts-jest";
+
+const jestConfig: JestConfigWithTsJest = {
+	testEnvironment: "jsdom",
+	transform: {
+		'^.+\\.m?[tj]sx?$': ["ts-jest", {
+			tsconfig: "./tsconfig.json",
+			babelConfig: "./babel.config.json",
+		}],
+	},
+	setupFiles: ["./tests-ui/globalSetup.ts"],
+	setupFilesAfterEnv: ["./tests-ui/afterSetup.ts"],
+	clearMocks: true,
+	resetModules: true,
+	testTimeout: 10000,
+	moduleNameMapper: {
+		"^src/(.*)$": "<rootDir>/src/$1",
+	},
+};
+
+export default jestConfig;