(dsl): Support prefix query

docs/overview/queries/elastic_query_prefix.md

@@ -0,0 +1,31 @@
+---
+id: elastic_query_prefix
+title: "Prefix Query"
+---
+
+The `Prefix` query returns documents that contain a specific prefix in a provided field.
+
+In order to use the `Prefix` query import the following:
+```scala
+import zio.elasticsearch.query.PrefixQuery
+import zio.elasticsearch.ElasticQuery._
+```
+
+You can create a `Prefix` query using the `prefix` method this way:
+```scala
+val query: PrefixQuery = prefix(field = Document.name, value = "test")
+```
+
+You can create a [type-safe](https://lambdaworks.github.io/zio-elasticsearch/overview/overview_zio_prelude_schema) `Prefix` query using the `prefix` method this way:
+```scala
+val query: PrefixQuery = prefix(field = Document.name, value = "test")
+```
+
+If you want to change the `case_insensitive`, you can use `caseInsensitive`, `caseInsensitiveFalse` or `caseInsensitiveTrue` method:
+```scala
+val queryWithCaseInsensitive: PrefixQuery = prefix(field = Document.name, value = "test").caseInsensitive(true)
+val queryWithCaseInsensitiveFalse: PrefixQuery = prefix(field = Document.name, value = "test").caseInsensitiveFalse
+val queryWithCaseInsensitiveTrue: PrefixQuery = prefix(field = Document.name, value = "test").caseInsensitiveTrue
+```
+
+You can find more information about `Prefix` query [here](https://www.elastic.co/guide/en/elasticsearch/reference/7.17/query-dsl-prefix-query.html).

website/sidebars.js

@@ -24,6 +24,7 @@ module.exports = {
                     'overview/queries/elastic_query_match_all',
                     'overview/queries/elastic_query_match_phrase',
                     'overview/queries/elastic_query_nested',
+                    'overview/queries/elastic_query_prefix',
                     'overview/queries/elastic_query_range',
                     'overview/queries/elastic_query_term',
                     'overview/queries/elastic_query_terms',