init: fix export for web_search (#581)

examples/web-search-crawl.py

@@ -2,6 +2,7 @@
 # requires-python = ">=3.11"
 # dependencies = [
 #     "rich",
+#     "ollama",
 # ]
 # ///
 import os

ollama/__init__.py

@@ -55,5 +55,5 @@ list = _client.list
 copy = _client.copy
 show = _client.show
 ps = _client.ps
-websearch = _client.web_search
-webcrawl = _client.web_crawl
+web_search = _client.web_search
+web_crawl = _client.web_crawl