Work around multiple destructor calls after consteval construction in full expression

I have no idea, if this is our fault or not, but Jason traced it back to
the consteval on the {fmt} format string constructor.

Specifically when a consteval constructor call happens in the statement,
the destructor call is moved to the end of the block. Inside the switch
statement that means, the destructor is called multiple times, which
corrupts the use count and crashes Nheko because of a double free.

I am assuming this is a bug in clang, but this will need to be
investigated more.

fixes #1292

src/Logging.cpp

@@ -45,19 +45,19 @@ qmlMessageHandler(QtMsgType type, const QMessageLogContext &context, const QStri
 
     switch (type) {
     case QtDebugMsg:
-        nhlog::qml()->debug("{} ({}:{}, {})", localMsg, file, context.line, function);
+        qml_logger->debug("{} ({}:{}, {})", localMsg, file, context.line, function);
         break;
     case QtInfoMsg:
-        nhlog::qml()->info("{} ({}:{}, {})", localMsg, file, context.line, function);
+        qml_logger->info("{} ({}:{}, {})", localMsg, file, context.line, function);
         break;
     case QtWarningMsg:
-        nhlog::qml()->warn("{} ({}:{}, {})", localMsg, file, context.line, function);
+        qml_logger->warn("{} ({}:{}, {})", localMsg, file, context.line, function);
         break;
     case QtCriticalMsg:
-        nhlog::qml()->critical("{} ({}:{}, {})", localMsg, file, context.line, function);
+        qml_logger->critical("{} ({}:{}, {})", localMsg, file, context.line, function);
         break;
     case QtFatalMsg:
-        nhlog::qml()->critical("{} ({}:{}, {})", localMsg, file, context.line, function);
+        qml_logger->critical("{} ({}:{}, {})", localMsg, file, context.line, function);
         break;
     }
 }