Meilisearch: require all query terms to be matched (#28293)

Previously only the first term had to be matched. That default
Meilisearch behavior makes sense for e.g. some kind of autocomplete to
find and select a single result. But for filtering issues it means you
can't narrow down results by adding more terms.

This is also more consistent with other indexers and GitHub.

---

Reference:
https://www.meilisearch.com/docs/reference/api/search#matching-strategy

modules/indexer/issues/meilisearch/meilisearch.go

@@ -215,6 +215,7 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
 		Limit:            int64(limit),
 		Offset:           int64(skip),
 		Sort:             sortBy,
+		MatchingStrategy: "all",
 	})
 	if err != nil {
 		return nil, err