Fix blurry icons by adding UseHighDpiPixmaps flag

Summary: When using fractional scaling, icons on the top are blurred. This patch fixes the issue.

Test Plan: No side effects.

Reviewers: #kde_games, yurchor

Reviewed By: yurchor

Subscribers: yurchor, kde-games-devel

Differential Revision: https://phabricator.kde.org/D29642

src/main.cpp

@@ -42,9 +42,10 @@ namespace Kigo { /* This is only a Doxygen stub */ }
  */
 int main(int argc, char *argv[])
 {
+    // Fixes blurry icons with fractional scaling
+    QGuiApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
     QApplication app(argc, argv);
 
-
     Kdelibs4ConfigMigrator migrate(QStringLiteral("kigo"));
     migrate.setConfigFiles(QStringList() << QStringLiteral("kigorc"));
     migrate.setUiFiles(QStringList() << QStringLiteral("kigoui.rc"));