docs: Update documentation for new playground in workspace overview (l…

…angflow-ai#4726)

* update docs to fit new playground
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Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com>

docs/docs/Workspace/workspace-overview.md

@@ -26,7 +26,7 @@ The **Playground** executes the current flow in the workspace.
 
 Chat with your flow, view inputs and outputs, and modify your AI's memories to tune your responses in real time.
 
-Any input or output component can be opened in the **Playground** and tested in real time.
+Either the **Chat Input** or **Chat Output** component can be opened in the **Playground** and tested in real time.
 
 For more information, see the [Playground documentation](/workspace-playground).