Feature/dotnet7 migration (#828)

* migration to .net 7

* remove temp memory database

* adapt global.json .net 7

* adapt Rich Code Navigation to .net 7

* update and clean run for .net 7

* update .net ef tool

Co-authored-by: cedri <cedri@BAS>

.vscode/launch.json

@@ -10,7 +10,7 @@
             "request": "launch",
             "preLaunchTask": "build",
             // If you have changed target frameworks, make sure to update the program path.
-            "program": "${workspaceFolder}/src/Web/bin/Debug/net5.0/Web.dll",
+            "program": "${workspaceFolder}/src/Web/bin/Debug/net7.0/Web.dll",
             "args": [],
             "cwd": "${workspaceFolder}/src/Web",
             "stopAtEntry": false,