Add a zero note check for MIDI recording (#8328)

Adds a check in finishRecordNote that verifies no notes of length 0 can be made, which was possible before.

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Co-authored-by: bratpeki <pkatic2003@gmail.com>

src/gui/editors/PianoRoll.cpp

@@ -43,6 +43,7 @@
 #include <QStyleOption>
 #include <QToolButton>
 
+#include <algorithm>
 #include <cmath>
 #include <utility>
 
@@ -4471,6 +4472,7 @@ void PianoRoll::finishRecordNote(const Note & n )
 						n1.quantizeLength(quantization());
 						n1.quantizePos(quantization());
 					}
+					n1.setLength(std::max(n1.length(), TimePos(1)));
 					m_midiClip->addNote(n1, false);
 					update();
 					m_recordingNotes.erase( it );