Deal with recent Qt methods deprecation (#3801)

* Deal with recent Qt methods deprecation

 * Use std::sort, std::less instead of qSort/qLess
 * Use QFontMetrics::horizontalAdvance instead of ::width
 * Use qApp->primaryScreen() instead of QDesktopWidget
 * use lambas instead of QSignalMapper
 * Use QTreeWidgetItem::setForeground instead of ::setTextColor
 * Use QDir::setPath instead of operator=(QString)
 * Use QList::swapItemsAt instead of ::swap

* fix error

common/decklist.cpp

@@ -4,6 +4,7 @@
 #include <QFile>
 #include <QRegularExpression>
 #include <QTextStream>
+#include <algorithm>
 
 #if QT_VERSION < 0x050600
 // qHash on QRegularExpression was added in 5.6, FIX IT
@@ -316,7 +317,7 @@ QVector<QPair<int, int>> InnerDecklistNode::sort(Qt::SortOrder order)
 
     // Sort temporary list
     compareFunctor cmp(order);
-    qSort(tempList.begin(), tempList.end(), cmp);
+    std::sort(tempList.begin(), tempList.end(), cmp);
 
     // Map old indexes to new indexes and
     // copy temporary list to the current one

common/server_cardzone.cpp

@@ -59,7 +59,11 @@ void Server_CardZone::shuffle(int start, int end)
 
     for (int i = end; i > start; i--) {
         int j = rng->rand(start, i);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 13, 0))
+        cards.swapItemsAt(j, i);
+#else
         cards.swap(j, i);
+#endif
     }
     playersWithWritePermission.clear();
 }

common/server_player.cpp

@@ -84,6 +84,7 @@
 #include "pb/context_undo_draw.pb.h"
 
 #include <QDebug>
+#include <algorithm>
 
 Server_Player::Server_Player(Server_Game *_game,
                              int _playerId,
@@ -409,7 +410,7 @@ Response::ResponseCode Server_Player::moveCard(GameEventStorage &ges,
     // 0 performs no sorting
     // 1 reverses the sorting
     MoveCardCompareFunctor cmp(0);
-    qSort(cardsToMove.begin(), cardsToMove.end(), cmp);
+    std::sort(cardsToMove.begin(), cardsToMove.end(), cmp);
 
     bool secondHalf = false;
     int xIndex = -1;