let AI comment everything because well... yeah...

lib/screens/excursion/widgets/letzter_niederschlag.dart

@@ -1,7 +1,24 @@
+// * Widget for selecting the timing of last precipitation
+// * Features:
+// * - Dropdown menu for time selection
+// * - Multiple predefined time ranges
+// * - Localized time descriptions
+// * Available time ranges:
+// * - Currently raining
+// * - Same morning
+// * - Last night
+// * - Previous day/evening
+// * - 2-3 days ago
+// * - 4-6 days ago
+// * - 1 week or more
+
 import 'package:flutter/material.dart';
 import 'package:fforte/l10n/app_localizations.dart';
 
+/// Widget for recording when the last precipitation occurred
+/// Used to track weather conditions during wildlife monitoring
 class LetzterNiederschlag extends StatefulWidget {
+  /// Controller for storing the selected precipitation timing
   final TextEditingController controller;
 
   const LetzterNiederschlag({super.key, required this.controller});
@@ -10,11 +27,14 @@ class LetzterNiederschlag extends StatefulWidget {
   LetzterNiederschlagState createState() => LetzterNiederschlagState();
 }
 
+/// State class for the last precipitation selection widget
 class LetzterNiederschlagState extends State<LetzterNiederschlag> {
-  late String? selectedValue; // Variable für den ausgewählten Wert
+  /// Currently selected precipitation timing value
+  late String? selectedValue;
   
   @override
   void initState() {
+    // Initialize selection from controller
     if (widget.controller.text == "") {
       selectedValue = null;
     } else {
@@ -36,30 +56,37 @@ class LetzterNiederschlagState extends State<LetzterNiederschlag> {
         });
       },
       items: [
+        // Currently raining option
         DropdownMenuItem<String>(
           value: "aktuell",
           child: Text(AppLocalizations.of(context)!.aktuell),
         ),
+        // Same morning option
         DropdownMenuItem<String>(
           value: "am selben Morgen",
           child: Text(AppLocalizations.of(context)!.selberMorgen),
         ),
+        // Last night option
         DropdownMenuItem<String>(
           value: "in der Nacht",
           child: Text(AppLocalizations.of(context)!.letzteNacht),
         ),
+        // Previous day/evening option
         DropdownMenuItem<String>(
           value: "am Tag oder Abend zuvor",
           child: Text(AppLocalizations.of(context)!.vortag),
         ),
+        // 2-3 days ago option
         DropdownMenuItem<String>(
           value: "vor 2 bis 3 Tagen",
           child: Text(AppLocalizations.of(context)!.vor23Tagen),
         ),
+        // 4-6 days ago option
         DropdownMenuItem<String>(
           value: "vor 4 bis 6 Tagen",
           child: Text(AppLocalizations.of(context)!.vor46Tagen),
         ),
+        // 1 week or more option
         DropdownMenuItem<String>(
           value: ">=1 Woche",
           child: Text(AppLocalizations.of(context)!.vor1Woche),