Update translation files

Updated by "Remove blank strings" hook in Weblate.

Translation: Decky/Decky
Translate-URL: https://weblate.werwolv.net/projects/decky/decky/

backend/locales/de-DE.json

@@ -1,15 +1,7 @@
 {
-    "PluginLoader": {
-        "decky_title": ""
-    },
     "SettingsGeneralIndex": {
         "other": {
             "header": ""
         }
-    },
-    "Updater": {
-        "updates": {
-            "install_button": ""
-        }
     }
 }