Replace obsolete qCopy with std::copy

Fixes 2 compilation warnings about using obsolete function

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>

src/History.cpp

@@ -544,7 +544,7 @@ void CompactHistoryScroll::addCellsVector(const TextLine &cells)
 void CompactHistoryScroll::addCells(const Character a[], int count)
 {
     TextLine newLine(count);
-    qCopy(a, a + count, newLine.begin());
+    std::copy(a, a + count, newLine.begin());
     addCellsVector(newLine);
 }