CHANGE: refractor + refined user routes, added change pw form and function

Backend/endpoints/time_create.go

@@ -29,7 +29,7 @@ func TimeCreateHandler(w http.ResponseWriter, r *http.Request) {
 // Creates a booking from the http query params -> no body needed
 // after that entry wi'll be written to database and the booking is returned as json
 func createBooking(w http.ResponseWriter, r *http.Request) {
-	if(!checkPassword(r)){
+	if !checkPassword(r) {
 		log.Println("Wrong or no API key provided!")
 		http.Error(w, "Wrong or no API key provided", http.StatusUnauthorized)
 		return