Merge #2863: [Bug] [GUI] Fix focus on send transaction

f7ed184 Fix focus on send (Alessandro Rezzi)

Pull request description:

  This is a trivial but quite annoying bug fix. Basically once a transaction is actually sent from the GUI (so a few seconds after the user presses on "SEND" in the confirmation screen) the focus goes back to the "Recipient address" field regardless the screen the user is currently on.

  Now once the "SEND" button is pressed the focus on "Recipient address" is already (and istantly) gained by the function `showEvent` in send.cpp, so to fix this issue I simply removed the call to `setFocusOnLastEntry` that happens when the transaction is actually sent (which is therefore completely useless).

  This PR also solves #2597 and #1566

ACKs for top commit:
  Liquid369:
    tACK f7ed184
  Fuzzbawls:
    ACK f7ed184

Tree-SHA512: d6c98c3d8af6196b5f63ef0274043e9a3d064f9cba6bc057f2e8188b3c2edbf8c85455eb9767728d7281b60b835748ee0ed48cf2eaf4a973d15ebb557486fb81

src/qt/pivx/send.cpp

@@ -457,7 +457,6 @@ void SendWidget::ProcessSend(QList<SendCoinsRecipient>& recipients, bool hasShie
  if (sendFinalStep()) {
  updateEntryLabels(ptrModelTx->getRecipients());
  }
- setFocusOnLastEntry();
  } else if (!processingResultError->isEmpty()){
  inform(*processingResultError);
  }