docs: update to the list of partner packages in the list of providers (#18252)

**Description:** Update to the list of partner packages in the list of
providers
**Issue:** Google & Nvidia had two entries each, both pointing to the
same page
**Dependencies:** None

docs/docs/integrations/platforms/index.mdx

@@ -15,13 +15,11 @@ These providers have standalone `langchain-{provider}` packages for improved ver
 - [Anthropic](/docs/integrations/platforms/anthropic)
 - [Astra DB](/docs/integrations/providers/astradb)
 - [Exa Search](/docs/integrations/providers/exa_search)
-- [Google Generative AI](/docs/integrations/platforms/google)
+- [Google](/docs/integrations/platforms/google)
-- [Google Vertex AI](/docs/integrations/platforms/google)
 - [IBM](/docs/integrations/providers/ibm)
 - [MistralAI](/docs/integrations/providers/mistralai)
 - [Nomic](/docs/integrations/providers/nomic)
-- [Nvidia AI Endpoints](/docs/integrations/providers/nvidia)
+- [Nvidia](/docs/integrations/providers/nvidia)
-- [Nvidia AI](/docs/integrations/providers/nvidia)
 - [OpenAI](/docs/integrations/platforms/openai)
 - [Pinecone](/docs/integrations/providers/pinecone)
 - [Robocorp](/docs/integrations/providers/robocorp)