Only include jest tests in jest

Don't generate sourcemaps for TS
Remove github actions

jest.config.js

@@ -4,6 +4,6 @@ module.exports = {
   transform: {
     "^.+\\.(js|jsx|ts|tsx)$": "babel-jest",
   },
-  // testMatch: ["**/?(*.)+(test).[jt]s?(x)"],
+  testMatch: ["**/?(*.)+(test).[jt]s?(x)"],
   testEnvironment: "jsdom",
 };