fix(monitoring): fix untranslated "common.refresh" key on Update Log button

Used a translation key that doesn't exist (common.refresh) instead of the
existing monitoring.refresh, so the button rendered the raw key instead of
"Aktualisieren"/"Refresh".

app/main.py

@@ -34,7 +34,7 @@ logger = logging.getLogger(__name__)
 app = FastAPI(
     title="NetBird MSP Appliance",
     description="Multi-tenant NetBird management platform for MSPs",
-    version="1.5.0",
+    version="1.5.1",
     docs_url="/api/docs",
     redoc_url="/api/redoc",
     openapi_url="/api/openapi.json",