feat: updated docs and added description to files

Backend/models/user.go

@@ -1,5 +1,11 @@
 package models
 
+// the user type represents the user of the software
+// it has functions to request the bookings and other data based
+// on either the "PersonalNummer" or "CardUID"
+//
+// users and their passwords are stored in the "s_personal_daten" and "user_pass" tables
+
 import (
 	"arbeitszeitmessung/helper"
 	"context"
@@ -149,7 +155,7 @@ func (u *User) CheckAnwesenheit() bool {
 
 // Creates a new booking for the user -> check_in_out will be 254 for automatic check out
 func (u *User) CheckOut() error {
-	booking := (*Booking).New(nil, u.CardUID, 0, 254, 1)
+	booking := (*Booking).NewBooking(nil, u.CardUID, 0, 254, 1)
 	err := booking.Insert()
 	if err != nil {
 		fmt.Printf("Error inserting booking %v -> %v\n", booking, err)
@@ -282,15 +288,6 @@ func (u *User) GetNextWeek() WorkWeek {
 
 }
 
-func parseUser(rows *sql.Rows) (User, error) {
-	var user User
-	if err := rows.Scan(&user.PersonalNummer, &user.CardUID, &user.Vorname, &user.Name, &user.ArbeitszeitPerTag); err != nil {
-		log.Println("Error scanning row!", err)
-		return user, err
-	}
-	return user, nil
-}
-
 // returns the start of the week, the last submission was made, submission == first booking or last send wochen_report to team leader
 func (u *User) GetLastWorkWeekSubmission() time.Time {
 	var lastSub time.Time