feat: remove check for updates in market releases

lib/domain/environment.dart

@@ -1,4 +1,23 @@
+import 'package:dartx/dartx.dart';
+
 enum Environment {
   prod,
   dev;
 }
+
+enum Release {
+  general("general"),
+  googlePlay("google-play");
+
+  const Release(this.key);
+
+  final String key;
+
+  bool get allowCustomUpdateChecker => this == general;
+
+  static Release read() =>
+      Release.values.firstOrNullWhere(
+        (e) => e.key == const String.fromEnvironment("release"),
+      ) ??
+      Release.general;
+}