updated calendar color cards and detection update to V1.0.1

lib/services/google_calendar_service.dart

@@ -36,7 +36,26 @@ class GoogleCalendarService {
       final response = await _httpClient.get(url);
 
       if (response.statusCode == 200) {
-        return _parseICalendar(response.body);
+        final allEvents = _parseICalendar(response.body);
+
+        // Filter events by date range if provided
+        if (startDate != null || endDate != null) {
+          return allEvents.where((event) {
+            if (event.startTime == null) return false;
+
+            if (startDate != null && event.startTime!.isBefore(startDate)) {
+              return false;
+            }
+
+            if (endDate != null && event.startTime!.isAfter(endDate)) {
+              return false;
+            }
+
+            return true;
+          }).toList();
+        }
+
+        return allEvents;
       } else {
         throw Exception('Failed to load calendar: ${response.statusCode}');
       }