Add code snippets for the text search guide (#2056)

* Python snippets

* TS snippets

* Rust snippets

* Java snippets

* C# snippets

* Go snippets

* Generate .md files

* Hide client connection in Rust snippets

* Switch to builder pattern for Rust snippets

* Use Document::new instead of DocumentBuilder::new

* docs: Updated Go snippets

Signed-off-by: Anush008 <mail@anush.sh>

* docs: Updated Java snippets

Signed-off-by: Anush008 <anushshetty90@gmail.com>

* docs: Updated C# snippets

Signed-off-by: Anush008 <anushshetty90@gmail.com>

* docs: Updated BM25 avg_len Java snippet

Signed-off-by: Anush008 <anushshetty90@gmail.com>

* chore: review and format rust snippets

* chore: trigger pr update

* chore: remove qdrant_storage folder

* fix: remove tokio::main

* chore: trigger pr update

* Regenerate .md files

* George's feedback: set bm25 params at ingest-time, change Python client init to use cloud inference explicitly, and mark bm25 options unavailable in FastEmbed

---------

Signed-off-by: Anush008 <mail@anush.sh>
Signed-off-by: Anush008 <anushshetty90@gmail.com>
Co-authored-by: Anush008 <mail@anush.sh>
Co-authored-by: Anush008 <anushshetty90@gmail.com>
Co-authored-by: Daniel Boros <dancixx@gmail.com>

qdrant-landing/content/documentation/headless/snippets/text-search/ingest-bm25-point/python.py

@@ -0,0 +1,27 @@
+from qdrant_client import QdrantClient, models
+
+client = QdrantClient(
+    url="https://xyz-example.qdrant.io:6333",
+    api_key="<your-api-key>",
+    cloud_inference=True,
+)
+
+client.upsert(
+    collection_name="books",
+    points=[
+        models.PointStruct(
+            id=1,
+            vector={
+                "title-bm25": models.Document(
+                    text="The Time Machine",
+                    model="qdrant/bm25",
+                )
+            },
+            payload={
+                "title": "The Time Machine",
+                "author": "H.G. Wells",
+                "isbn": "9780553213515",
+            },
+        )
+    ],
+)