Merge pull request f4exb#2122 from srcejon/freq_scanner

Morse feature: Fix for Qt6 and Windows.

plugins/feature/morsedecoder/morsedecoderworker.cpp

@@ -188,7 +188,7 @@ int MorseDecoderWorker::processBuffer(QByteArray& bytesBuffer)
         std::for_each(
             dst.begin(),
             dst.end(),
-            [&](const uint8_t c) { text.append(c); }
+            [&](const uint8_t c) { text.append((char) c); }
         );
 
         const GGMorse::Statistics& stats = m_ggMorse->getStatistics();