Edit `src/main/resources/fess_indices/fess.json` to add language-specific analyzers.

**Example for Swedish:**
```json
{
  "analysis": {
    "filter": {
      "swedish_stop": {
        "type": "stop",
        "stopwords": "_swedish_"
      },
      "swedish_stemmer": {
        "type": "stemmer",
        "language": "swedish"
      }
    },
    "analyzer": {
      "sv_analyzer": {
        "type": "custom",