Lower voice recording minimum duration

lib/screens/mapflow_shell.dart

@@ -270,6 +270,8 @@ class AddExperienceFlow extends ConsumerStatefulWidget {
 }
 
 class _AddExperienceFlowState extends ConsumerState<AddExperienceFlow> {
+  static const _minimumVoiceSeconds = 30;
+
   Timer? _timer;
   var _step = 0;
   var _seconds = 0;
@@ -341,9 +343,10 @@ class _AddExperienceFlowState extends ConsumerState<AddExperienceFlow> {
       _ => _VoiceStep(
         place: _selectedGooglePlace,
         seconds: _seconds,
+        minimumSeconds: _minimumVoiceSeconds,
         time: time,
         isRecording: _recording,
-        canContinue: _seconds >= 60,
+        canContinue: _seconds >= _minimumVoiceSeconds,
         onToggleRecording: _toggleRecording,
         onNext: () {
           final coordinate =
@@ -486,6 +489,7 @@ class _VoiceStep extends StatelessWidget {
   const _VoiceStep({
     required this.place,
     required this.seconds,
+    required this.minimumSeconds,
     required this.time,
     required this.isRecording,
     required this.canContinue,
@@ -495,6 +499,7 @@ class _VoiceStep extends StatelessWidget {
 
   final _GooglePlaceStub? place;
   final int seconds;
+  final int minimumSeconds;
   final String time;
   final bool isRecording;
   final bool canContinue;
@@ -515,7 +520,7 @@ class _VoiceStep extends StatelessWidget {
             ).textTheme.titleLarge?.copyWith(fontWeight: FontWeight.w900),
           ),
           const SizedBox(height: 8),
-          const Text('Минимум 60 секунд', textAlign: TextAlign.center),
+          Text('Минимум $minimumSeconds секунд', textAlign: TextAlign.center),
           const SizedBox(height: 26),
           SizedBox(
             width: 132,
@@ -534,7 +539,9 @@ class _VoiceStep extends StatelessWidget {
             ).textTheme.headlineMedium?.copyWith(fontWeight: FontWeight.w900),
           ),
           const SizedBox(height: 12),
-          LinearProgressIndicator(value: (seconds / 60).clamp(0.0, 1.0)),
+          LinearProgressIndicator(
+            value: (seconds / minimumSeconds).clamp(0.0, 1.0),
+          ),
           const Spacer(),
         ],
       ),