fix: restrict languages in console (#6964)

* feat: return 404 or 409 if org reg disallowed

* fix: system limit permissions

* feat: add iam limits api

* feat: disallow public org registrations on default instance

* add integration test

* test: integration

* fix test

* docs: describe public org registrations

* avoid updating docs deps

* fix system limits integration test

* silence integration tests

* fix linting

* ignore strange linter complaints

* review

* improve reset properties naming

* redefine the api

* use restrictions aggregate

* test query

* simplify and test projection

* test commands

* fix unit tests

* move integration test

* support restrictions on default instance

* also test GetRestrictions

* self review

* lint

* abstract away resource owner

* fix tests

* configure supported languages

* fix allowed languages

* fix tests

* default lang must not be restricted

* preferred language must be allowed

* change preferred languages

* check languages everywhere

* lint

* test command side

* lint

* add integration test

* add integration test

* restrict supported ui locales

* lint

* lint

* cleanup

* lint

* allow undefined preferred language

* fix integration tests

* update main

* fix env var

* ignore linter

* ignore linter

* improve integration test config

* reduce cognitive complexity

* compile

* fix(console): switch back to saved language

* feat(API): get allowed languages

* fix(console): only make allowed languages selectable

* warn when editing not allowed languages

* check for duplicates

* remove useless restriction checks

* review

* revert restriction renaming

* fix language restrictions

* lint

* generate

* allow custom texts for supported langs for now

* fix tests

* cleanup

* cleanup

* cleanup

* lint

* unsupported preferred lang is allowed

* fix integration test

* allow unsupported preferred languages

* lint

* load languages for tests

* cleanup

* lint

* cleanup

* get allowed only on admin

* cleanup

* reduce flakiness on very limited postgres

* simplify langSvc

* refactor according to suggestions in pr

* lint

* set first allowed language as default

* selectionchange for language in msg texts

* initialize login texts

* init message texts

* lint

---------

Co-authored-by: peintnermax <max@caos.ch>

console/src/assets/i18n/fr.json

@@ -1261,8 +1261,10 @@
       "RESET_DESCRIPTION": "Vous êtes sur le point de restaurer toutes les valeurs par défaut. Toutes les modifications que vous avez apportées seront définitivement supprimées. Voulez-vous vraiment continuer ?",
       "UNSAVED_TITLE": "Continuer sans sauvegarder ?",
       "UNSAVED_DESCRIPTION": "Vous avez apporté des modifications sans les sauvegarder. Voulez-vous les enregistrer maintenant ?",
-      "LOCALE": "Code Locale",
-      "LOCALES": {
+      "ACTIVE_LANGUAGE_NOT_ALLOWED": "Vous avez sélectionné une langue qui n'est pas autorisée. Vous pouvez continuer à modifier les textes. Mais si vous voulez que vos utilisateurs puissent réellement utiliser cette langue, modifiez les restrictions de vos instances.",
+      "LANGUAGES_NOT_ALLOWED": "Non autorisé:",
+      "LANGUAGE": "Langue",
+      "LANGUAGES": {
         "de": "Deutsch",
         "en": "English",
         "es": "Español",