Correção no botão de iniciar corrida

lib/screens/google_map_screen.dart

@@ -45,7 +45,6 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
   }
 
   Future<void> _setupIconsAndTracking() async {
-    // Icons reduced by ~70% as requested
     _arrowIcon = await _createArrowMarker(Colors.black, Colors.white, 25);
     await _initTracking();
   }
@@ -105,7 +104,7 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
         locationSettings: const LocationSettings(accuracy: LocationAccuracy.bestForNavigation, distanceFilter: 1)
     ).listen((Position position) {
       final now = DateTime.now();
-      if (_lastUpdate == null || now.difference(_lastUpdate!).inMilliseconds > 1000) {
+      if (_lastUpdate == null || now.difference(_lastUpdate!).inMilliseconds > 2000) {
         _lastUpdate = now;
         _updatePosition(LatLng(position.latitude, position.longitude), position.speed);
       }
@@ -149,7 +148,6 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
   void _updateTraveledPolylines() {
     if (_routePoints.length > 1) {
       _polylines.clear();
-      // Glow effect for the trail
       _polylines.add(Polyline(
           polylineId: const PolylineId('route_glow'), 
           points: List.from(_routePoints), 
@@ -157,7 +155,6 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
           width: 12, 
           zIndex: 9
       ));
-      // Main trail line
       _polylines.add(Polyline(
           polylineId: const PolylineId('route'), 
           points: List.from(_routePoints), 
@@ -284,8 +281,6 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
                     const SizedBox(height: 20),
                     const Text(AppStrings.runFinished, style: TextStyle(color: Colors.white, fontSize: 24, fontWeight: FontWeight.w900, letterSpacing: 1)),
                     const SizedBox(height: 30),
-                    
-                    // Mini Map Container
                     Container(
                       height: 180,
                       decoration: BoxDecoration(
@@ -318,13 +313,11 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
                       ),
                     ),
                     const SizedBox(height: 25),
-                    
                     _buildResultRow(AppStrings.totalDistance, _formatDistance(finalDistance)),
                     const Divider(color: Colors.white10, height: 25),
                     _buildResultRow(AppStrings.totalTime, _formatTime(finalTime)),
                     const Divider(color: Colors.white10, height: 25),
                     _buildResultRow("VELOCIDADE MÁX", "${finalMaxSpeed.toStringAsFixed(1)} ${AppStrings.kmhUnit}"),
-                    
                     const SizedBox(height: 35),
                     SizedBox(
                       width: double.infinity,
@@ -406,7 +399,6 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
       extendBodyBehindAppBar: true,
       body: Stack(
         children: [
-          // Background Map Container
           Center(
             child: Container(
                 width: MediaQuery.of(context).size.width * 0.94, 
@@ -430,13 +422,11 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
                         myLocationButtonEnabled: false, 
                         compassEnabled: false, 
                         mapToolbarEnabled: false,
-                        style: null, // You can add custom styling here
                       )
                 )
             ),
           ),
 
-          // Stats Overlay
           Positioned(
             top: 115, left: 25, right: 25,
             child: Container(
@@ -460,7 +450,6 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
             ),
           ),
 
-          // Countdown Overlay
           if (_isCountingDown)
             Container(
               color: Colors.black87,
@@ -479,7 +468,7 @@ class _GoogleMapScreenState extends State<GoogleMapScreen> {
             ),
         ],
       ),
-      floatingActionButton: Padding(
+      floatingActionButton: _isCountingDown ? null : Padding(
         padding: const EdgeInsets.only(bottom: 20.0),
         child: FloatingActionButton.extended(
           onPressed: _isRunning ? _finishRun : _showStartConfirmation,