refactor: Structure files in more directories

lib/utils/matrix_sdk_extensions.dart/presence_extension.dart

@@ -0,0 +1,38 @@
+import 'package:famedlysdk/famedlysdk.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/l10n.dart';
+
+import '../date_time_extension.dart';
+
+extension PresenceExtension on Presence {
+  String getLocalizedLastActiveAgo(BuildContext context) {
+    if (presence.lastActiveAgo != null && presence.lastActiveAgo != 0) {
+      return L10n.of(context).lastActiveAgo(DateTime.fromMillisecondsSinceEpoch(
+              DateTime.now().millisecondsSinceEpoch - presence.lastActiveAgo)
+          .localizedTimeShort(context));
+    }
+    return L10n.of(context).lastSeenLongTimeAgo;
+  }
+
+  String getLocalizedStatusMessage(BuildContext context) {
+    if (presence.statusMsg?.isNotEmpty ?? false) {
+      return presence.statusMsg;
+    }
+    if (presence.currentlyActive ?? false) {
+      return L10n.of(context).currentlyActive;
+    }
+    return getLocalizedLastActiveAgo(context);
+  }
+
+  Color get color {
+    switch (presence?.presence ?? PresenceType.offline) {
+      case PresenceType.online:
+        return Colors.green;
+      case PresenceType.offline:
+        return Colors.grey;
+      case PresenceType.unavailable:
+      default:
+        return Colors.red;
+    }
+  }
+}