More translation strings

locale/de/freedombone-backup-local.json

     "Backing up ${PROJECT_NAME} configuration files": "",
     "Backing up README": "",
     "Backing up VoIP settings": "",
-    "Unable to backup mysql settings": ""
+    "Unable to backup mysql settings": "",
+    "Backing up some additional directories": "",
+    "WARNING: The backup directory $destination_dir is already used.": "",
+    "Choose a different destination name for backing up $backup_dir": "",
+    "WARNING: Directory $backup_dir does not exist": ""
 }

locale/de/freedombone-backup-remote.json

     "Backing up DLNA cache": "",
     "Backing up VoIP settings": "",
     "Unable to backup MariaDB settings": "",
-    "Unable to export database settings": ""
+    "Unable to export database settings": "",
+    "Backing up some additional directories": "",
+    "WARNING: The backup directory $destination_dir is already used.": "",
+    "Choose a different destination name for backing up $backup_dir": "",
+    "WARNING: Directory $backup_dir does not exist": ""
 }

locale/es/freedombone-backup-local.json

     "Backing up ${PROJECT_NAME} configuration files": "",
     "Backing up README": "",
     "Backing up VoIP settings": "",
-    "Unable to backup mysql settings": ""
+    "Unable to backup mysql settings": "",
+    "Backing up some additional directories": "",
+    "WARNING: The backup directory $destination_dir is already used.": "",
+    "Choose a different destination name for backing up $backup_dir": "",
+    "WARNING: Directory $backup_dir does not exist": ""
 }

locale/es/freedombone-backup-remote.json

     "Backing up DLNA cache": "",
     "Backing up VoIP settings": "",
     "Unable to backup MariaDB settings": "",
-    "Unable to export database settings": ""
+    "Unable to export database settings": "",
+    "Backing up some additional directories": "",
+    "WARNING: The backup directory $destination_dir is already used.": "",
+    "Choose a different destination name for backing up $backup_dir": "",
+    "WARNING: Directory $backup_dir does not exist": ""
 }

locale/fr/freedombone-backup-local.json

     "Backing up ${PROJECT_NAME} configuration files": "",
     "Backing up README": "",
     "Backing up VoIP settings": "",
-    "Unable to backup mysql settings": ""
+    "Unable to backup mysql settings": "",
+    "Backing up some additional directories": "",
+    "WARNING: The backup directory $destination_dir is already used.": "",
+    "Choose a different destination name for backing up $backup_dir": "",
+    "WARNING: Directory $backup_dir does not exist": ""
 }

locale/fr/freedombone-backup-remote.json

     "Backing up DLNA cache": "",
     "Backing up VoIP settings": "",
     "Unable to backup MariaDB settings": "",
-    "Unable to export database settings": ""
+    "Unable to export database settings": "",
+    "Backing up some additional directories": "",
+    "WARNING: The backup directory $destination_dir is already used.": "",
+    "Choose a different destination name for backing up $backup_dir": "",
+    "WARNING: Directory $backup_dir does not exist": ""
 }