Improved changelog (#406)

Author: SommerEngineering

app/MindWork AI Studio/wwwroot/changelog/v0.9.40.md

@@ -1,5 +1,5 @@
 # v0.9.40, build 215 (2025-04-xx xx:xx UTC)
-- Added support for the announced OpenAI `o4` models. We hope that these `o4` models will be usable by the well-known chat completion API instead of the new responses API, though. AI Studio cannot use the new responses API right now.
+- Added support for the announced OpenAI `o4` models.
 - Added Alibaba Cloud as a new provider. Thanks Peer `peerschuett` for the contribution.
 - Added the Hugging Face inference provider as an LLM provider to AI Studio. Thanks Peer `peerschuett` for the contribution.
 - Improved the provider selection by showing the name of the provider in the provider selection instead of its identifier.