user: remove make local feature

we discussed a bit on what this does and it's confusing as it stands:

* Use case of this is lost in the realms of time
* Possible guess by is that it was to move users of different Cloudron to a central cloudron
* Currently, the design is a bit flawed because the make user local button doesn’t pin the user. The state is lost in next synchronization.
* Maybe, one should use export/import user for this use case
* Let’s disable this button for now, feature is not complete.

dashboard/src/translation/de.json

@@ -269,8 +269,7 @@
             "invitationTooltip": "User einladen",
             "mailmanagerTooltip": "Dieser User kann Benutzer und Postfächer verwalten.",
             "setGhostTooltip": "Als anderer User ausgeben",
-            "count": "User insgesamt: {{ count }}",
-            "makeLocalTooltip": "Mache user lokal"
+            "count": "User insgesamt: {{ count }}"
         },
         "newUserAction": "Neuer User",
         "role": {
@@ -421,12 +420,6 @@
             "all": "Alle User",
             "active": "Aktive User",
             "inactive": "Inaktive User"
-        },
-        "makeLocalDialog": {
-            "description": "Dies migriert den User vom externen Verzeichnis zum Cloudron.",
-            "warning": "Das Passwort wird zurückgesetzt um dem User ein lokale Passwort zu geben.",
-            "title": "Mache den Benutzer lokal",
-            "submitAction": "Änderungen lokal speichern"
         }
     },
     "profile": {