Merge branch 'open_tool_for_self_hosting' into v5.0.0

NodeApp/.env.vault

NodeApp/src/app.ts

NodeApp/src/commander/CommanderApp.ts

NodeApp/src/commander/UpgradeCommand.ts

...mmander/assignment/subcommands/AssignmentCreateCommand.ts

NodeApp/src/commander/auth/subcommands/AuthTestCommand.ts

...mmander/exercise/subcommands/ExerciseCorrectionCommand.ts

...c/commander/exercise/subcommands/ExerciseCreateCommand.ts

NodeApp/src/commander/settings/SettingsCommand.ts

.../src/commander/settings/subcommands/SettingsApiCommand.ts

NodeApp/src/config/Config.ts

NodeApp/src/config/ConfigFiles.ts

NodeApp/src/config/LocalConfigFile.ts

NodeApp/src/helpers/AccessesHelper.ts

NodeApp/src/helpers/Dojo/ExerciseRunHelper.ts

NodeApp/src/helpers/GlobalHelper.ts

NodeApp/src/managers/DojoBackendManager.ts

NodeApp/src/managers/GitlabManager.ts

NodeApp/src/managers/HttpManager.ts

NodeApp/src/managers/SessionManager.ts