Qt6 Migration: Merge latest Qt5 devel content and apply migration fixes

- Merged 292 changed files from dlbo snapshot
- Fixed IDL enum collisions (PortType, PdmEventType)
- Fixed Grantlee template for C++11 scoped enums
- Fixed CMake VERSION_GREATER syntax
- Added missing directories (THP, LtsRestClient, etc.)

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

translations/tds_de_DE.ts

@@ -323,7 +323,7 @@
     <message>
         <location filename="../Lts/Proxies/TrainingAreaBase/Plugins/AdlerJson/flm_handler.cpp" line="161"/>
         <source>HQ Report</source>
-        <translation>HQ Bericht</translation>
+        <translation>HQ Meldung</translation>
     </message>
     <message>
         <location filename="../Lts/Proxies/TrainingAreaBase/Plugins/AdlerJson/flm_handler.cpp" line="163"/>
@@ -9615,27 +9615,27 @@ Die Parameter können nicht geändert werden!</translation>
     <message>
         <location filename="../../build/Lts/Services/ParticipantManagement/ppm_translation.cpp" line="266"/>
         <source>Undefined</source>
-        <translation>Undefiniert</translation>
+        <translation>undefiniert</translation>
     </message>
     <message>
         <location filename="../../build/Lts/Services/ParticipantManagement/ppm_translation.cpp" line="267"/>
         <source>Disconnecting</source>
-        <translation>Trennen</translation>
+        <translation>trennen</translation>
     </message>
     <message>
         <location filename="../../build/Lts/Services/ParticipantManagement/ppm_translation.cpp" line="268"/>
         <source>Disconnected</source>
-        <translation>Getrennt</translation>
+        <translation>nicht verbunden</translation>
     </message>
     <message>
         <location filename="../../build/Lts/Services/ParticipantManagement/ppm_translation.cpp" line="269"/>
         <source>Connecting</source>
-        <translation>Verbinden</translation>
+        <translation>verbinden</translation>
     </message>
     <message>
         <location filename="../../build/Lts/Services/ParticipantManagement/ppm_translation.cpp" line="270"/>
         <source>Connected</source>
-        <translation>Verbunden</translation>
+        <translation>verbunden</translation>
     </message>
     <message>
         <location filename="../../build/Lts/Services/ParticipantManagement/ppm_translation.cpp" line="271"/>
@@ -17308,7 +17308,7 @@ Die zu ladende Datei ist nicht lesbar (%1).</translation>
     <message>
         <location filename="../Lts/Plugins/FileManagement/Gui/Explorer/HQReports/flm_hq_report_edit.cpp" line="252"/>
         <source>HQ Report</source>
-        <translation>HQ Bericht</translation>
+        <translation>HQ Meldung</translation>
     </message>
     <message>
         <location filename="../Lts/Plugins/FileManagement/Gui/Explorer/HQReports/flm_hq_report_edit.cpp" line="294"/>
@@ -17343,7 +17343,7 @@ Die zu ladende Datei ist nicht lesbar (%1).</translation>
         <location filename="../Lts/Plugins/FileManagement/Gui/Explorer/flm_explorer_gui_plugin.cpp" line="98"/>
         <location filename="../Lts/Plugins/FileManagement/Gui/Explorer/flm_explorer_gui_plugin.cpp" line="99"/>
         <source>HQ Report</source>
-        <translation>HQ Bericht</translation>
+        <translation>HQ Meldung</translation>
     </message>
     <message>
         <location filename="../Lts/Plugins/FileManagement/Gui/Explorer/flm_explorer_gui_plugin.cpp" line="116"/>