message: Hoist repeated translated strings to RPCConsole struct members
  and add missing braces to the touched conditionals.
diff: @@ -136,6 +136,11 @@ Q_SIGNALS:
  void cmdRequest(const QString &command, const WalletModel* wallet_model);
  private:
  + struct TranslatedStrings {
  + const QString yes{tr("Yes")}, no{tr("No")}, to{tr("To")}, from{tr("From")},
  + ban_for{tr("Ban for")}, na{tr("N/A")}, unknown{tr("Unknown")};
  + } const ts;
  +
  void startExecutor();
  void setTrafficGraphRange(int mins);
  