fix(database): respect Workers PBKDF2 iteration limit

public/locales/en.json

@@ -35,6 +35,7 @@
     "connected": "Connected to your account's records.",
     "sessionExpired": "The database session expired. Sign in again.",
     "requestFailed": "Database request failed.",
+    "unexpectedResponse": "The database server returned an unexpected response. Please retry in a moment.",
     "ownData": "CURRENT ACCOUNT ONLY",
     "directMode": "Direct record editor · changes are saved to D1",
     "logout": "Log out",