Fix get offline expert word

android/gradle.properties

@@ -2,5 +2,5 @@ org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
 android.enableR8=true
-app.versionName=1.1.5
-app.versionCode=5
+app.versionName=1.1.6
+app.versionCode=6

lib/utils/random_pick.dart

@@ -74,7 +74,7 @@ class RandomPick {
 
   Future _waitList() => Future(() {
         final completer = Completer();
-        int indexRandom = random.nextInt(630000);
+        int indexRandom = random.nextInt(list_french_words.length);
         completer.complete(list_french_words.sublist(indexRandom, indexRandom + 1).join('\n'));
         return completer.future;
       });