Fix gettext_lazy import

Author: jochenklar

docs/configuration/general.md

@@ -40,7 +40,7 @@ TIME_ZONE = 'Europe/Berlin'
 By default, RDMO runs with English as the first and German as the second language. It can be configured to run with up to 5 arbitrary languages. For this, the `LANGUAGES` setting need to be added to `config/settings/local.py`. E.g. for French:
 
 ```python
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 LANGUAGE_CODE = 'fr-fr'
 TIME_ZONE = 'Europe/Paris'
 LANGUAGES = (

docs/plugins/index.md

@@ -219,7 +219,7 @@ As mentioned above, there are two possibilities of how to install [rdmo-plugins]
 Please note that the imports require Django's translation utils and that we usually use these with an underscore. If you are getting import errors please check if you have the first of the following lines at the beginning of your `local.py`. You also need to import `PROJECT_EXPORTS` and `PROJECT_IMPORTS` as we will later append our imports to these lists. Make sure you also have the second line in your `local.py`.
 
 ```python
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from rdmo.core.settings import PROJECT_EXPORTS, PROJECT_IMPORTS
 ```
 

docs/upgrade/index.md

@@ -87,7 +87,7 @@ MIDDLEWARE.append('allauth.account.middleware.AccountMiddleware')
 RDMO 2.0.0 uses Django 4.2, which removed some functions. If you use
 
 ```python
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 ```
 
 in your `config/settings/local.py`, you need to change this to