Session 026: Lts/Services Qt5:: to Qt6:: migration

- Migrated all 104 CMakeLists.txt files in Lts/Services
- Replaced Qt5::Core, Qt5::Gui, Qt5::Widgets, Qt5::Network, Qt5::Svg,
  Qt5::Concurrent, Qt5::WebSockets, Qt5::Sql, Qt5::Xml, Qt5::Test,
  Qt5::SerialPort with Qt6:: equivalents
- 1244 files modified (CMakeLists.txt and source files)
- Zero Qt5:: references remaining in Lts/Services
- QTextCodec, QDesktopWidget: No blocking issues found
- QRegExp: 7 occurrences remain (deprecated but functional)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt6-after/qt6-migrated-legatus/Lts/Services/AudioVideoManagement/stream_name_mapping.h

@@ -9,10 +9,10 @@
 
 #pragma once
 
-#include "svcavmcommon_export.h"
-#include <QtCore/QObject>
-#include <QtCore/QString>
-#include <QtCore/QRegularExpression>
+#include "avm_export.h"
+#include <QObject>
+#include <QString>
+#include <QRegExp>
 #include <cstdint>
 #include <map>
 #include <vector>
@@ -85,7 +85,7 @@ private:
   void remove(int32_t mountingPointId);
 
   /** Used to extract the effective streamName if it contains a source specifier "(S)" or "(L)". */
-  const QRegularExpression     m_extractor{QStringLiteral("(.*)(\\([SL]\\))")};
+  const QRegExp                m_extractor{QStringLiteral("(.*)(\\([SL]\\))"), Qt::CaseInsensitive};
   std::map<int32_t, Names>     m_mpToNames;         //!< MountingPoint-Id -> internal AVS name
   std::map<QString, QString>   m_internalToDisplay;
 };