Disallow searches that have season without episode

[SubJunk]

Not sure how they happen but I saw it in the logs, we should reject it before it gets to the database

    "command": {
      "find": "failed_lookups",
      "filter": {
        "$or": [
          {
            "title": "A movie title probably",
            "season": "7"
          }
        ]
      },
      "limit": 1,
      "batchSize": 1,
    },
    "planSummary": "IXSCAN { title: 1, episode: 1, season: 1 }",

and same with a language:

            "title": "A movie title probably",
            "language": "ja",
            "season": "1"