replace spectron with playwright, rewrite electron tests

tests/configs/env.js

@@ -1,11 +0,0 @@
-/* Magic Mirror Test config sample environment
- *
- * By Rodrigo Ramírez Norambuena https://rodrigoramirez.com
- * MIT Licensed.
- */
-let config = require(process.cwd() + "/tests/configs/default.js").configFactory();
-
-/*************** DO NOT EDIT THE LINE BELOW ***************/
-if (typeof module !== "undefined") {
-	module.exports = config;
-}