code: @NonNull
      public static SharedPreferences.Editor putStringArray(@NonNull SharedPreferences.Editor editor,
              @NonNull String key, @Nullable String[] values, @NonNull String delimiter) {
          editor.putString(key, concat(values, delimiter));
          return editor;
      }
docs: Stores strings array as single string.
  
  @param delimiter Delimiter used for strings concatination.