Add text_any filter condition docs for 1.16

qdrant-landing/content/documentation/headless/snippets/filter-condition/full-text-match-any/_description.md

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+This code snippet sets up a field condition to search for one or more query terms within a text field. In this case, a special `text_any` match is defined with the target text being "good cheap". The behavior may vary depending on the configuration of the full-text index for the field. If there is no full-text index configured for the field, the condition will work as an exact substring match.

qdrant-landing/content/documentation/headless/snippets/filter-condition/full-text-match-any/json.md

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+```json
+{
+  "key": "description",
+  "match": {
+    "text_any": "good cheap"
+  }
+}
+```

qdrant-landing/content/documentation/headless/snippets/filter-condition/full-text-match-any/typescript.md

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+```typescript
+{
+    key: 'description',
+    match: {text_any: 'good cheap'}    
+}
+```