Level up popup tweaks (#3917)

* Use L10n for 'Level up' text

* Replace drop down button with close button

---------

Co-authored-by: ggurdin <ggurdin@gmail.com>
Co-authored-by: ggurdin <46800240+ggurdin@users.noreply.github.com>

lib/l10n/intl_en.arb

@@ -5226,6 +5226,7 @@
   "joinOpenSession": "Join open session",
   "less": "less",
   "activityNotFound": "Activity not found",
+  "levelUp": "Level up",
   "myActivities": "My activities",
   "openToJoin": "Open to join",
   "results": "Results",

lib/pangea/analytics_misc/level_up/level_up_banner.dart

@@ -7,10 +7,10 @@ import 'package:cached_network_image/cached_network_image.dart';
 
 import 'package:fluffychat/config/app_config.dart';
 import 'package:fluffychat/config/themes.dart';
+import 'package:fluffychat/l10n/l10n.dart';
 import 'package:fluffychat/pangea/analytics_misc/analytics_constants.dart';
 import 'package:fluffychat/pangea/analytics_misc/level_up/level_up_manager.dart';
 import 'package:fluffychat/pangea/analytics_misc/level_up/level_up_popup.dart';
-import 'package:fluffychat/pangea/common/config/environment.dart';
 import 'package:fluffychat/pangea/common/utils/overlay.dart';
 import 'package:fluffychat/pangea/constructs/construct_repo.dart';
 import 'package:fluffychat/widgets/matrix.dart';
@@ -237,7 +237,7 @@ class LevelUpBannerState extends State<LevelUpBanner>
                             crossAxisAlignment: WrapCrossAlignment.center,
                             children: [
                               Text(
-                                "Level up",
+                                L10n.of(context).levelUp,
                                 style: style,
                                 overflow: TextOverflow.ellipsis,
                               ),
@@ -256,17 +256,19 @@ class LevelUpBannerState extends State<LevelUpBanner>
                         child: Row(
                           mainAxisAlignment: MainAxisAlignment.end,
                           children: [
-                            if (Environment.isStagingEnvironment)
                             SizedBox(
                               width: 32.0,
                               height: 32.0,
                               child: Center(
                                 child: IconButton(
-                                    icon: const Icon(Icons.arrow_drop_down),
+                                  icon: const Icon(Icons.close),
                                   style: IconButton.styleFrom(
                                     padding: const EdgeInsets.all(4.0),
                                   ),
-                                    onPressed: _toggleDetails,
+                                  onPressed: () {
+                                    MatrixState.pAnyState
+                                        .closeOverlay("level_up_notification");
+                                  },
                                   constraints: const BoxConstraints(),
                                   color:
                                       Theme.of(context).colorScheme.onSurface,