Enable json config files

(cherry picked from commit 7f605c96)

aleksis/core/settings.py

@@ -17,6 +17,7 @@ DIRS_FOR_DYNACONF = ["/etc/aleksis"]
 
 SETTINGS_FILE_FOR_DYNACONF = []
 for directory in DIRS_FOR_DYNACONF:
+    SETTINGS_FILE_FOR_DYNACONF += glob(os.path.join(directory, "*.json"))
     SETTINGS_FILE_FOR_DYNACONF += glob(os.path.join(directory, "*.ini"))
     SETTINGS_FILE_FOR_DYNACONF += glob(os.path.join(directory, "*.yaml"))
     SETTINGS_FILE_FOR_DYNACONF += glob(os.path.join(directory, "*.toml"))