fix level progress calculation for level 1

lib/pangea/controllers/get_analytics_controller.dart

@@ -35,13 +35,19 @@ class GetAnalyticsController {
   Client get _client => _pangeaController.matrixState.client;
 
   // the minimum XP required for a given level
-  double get _minXPForLevel {
-    return 12.5 * (2 * pow(constructListModel.level - 1, 2) - 1);
+  int get _minXPForLevel {
+    return _calculateMinXpForLevel(constructListModel.level);
   }
 
   // the minimum XP required for the next level
-  double get _minXPForNextLevel {
-    return 12.5 * (2 * pow(constructListModel.level, 2) - 1);
+  int get _minXPForNextLevel {
+    return _calculateMinXpForLevel(constructListModel.level + 1);
+  }
+
+  /// Calculates the minimum XP required for a specific level.
+  int _calculateMinXpForLevel(int level) {
+    if (level == 1) return 0; // Ensure level 1 starts at 0 XP
+    return ((100 / 8) * (2 * pow(level - 1, 2))).floor();
   }
 
   // the progress within the current level as a percentage (0.0 to 1.0)
@@ -75,7 +81,6 @@ class GetAnalyticsController {
     constructListModel.dispose();
     _analyticsUpdateSubscription?.cancel();
     _analyticsUpdateSubscription = null;
-    analyticsStream.close();
     initCompleter = null;
     _cache.clear();
   }

lib/pangea/controllers/put_analytics_controller.dart

@@ -146,7 +146,7 @@ class PutAnalyticsController extends BaseController<AnalyticsStream> {
     );
   }
 
-  Future<void> _onUpdateLanguages(String previousL2) async {
+  Future<void> _onUpdateLanguages(String? previousL2) async {
     await sendLocalAnalyticsToAnalyticsRoom(
       l2Override: previousL2,
     );