feat: focus chat input when clicking plus button in extension menu (#6689)

* feat: focus chat input when clicking plus button in extension menu

- Added focusInput action after chatButtonClicked in plusButtonClicked handler
- This ensures the text area in ChatView gets focused when users click the + button
- Improves user experience by allowing immediate typing after creating new chat

* fix: replace unreliable setTimeout with sequential message passing

- Removed setTimeout with hardcoded 100ms delay
- Now sending focusInput action immediately after chatButtonClicked
- This ensures proper sequencing without arbitrary timing delays
- More reliable approach that doesn't depend on timing assumptions

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Co-authored-by: Roo Code <[email protected]>

Author: roomote[bot]

src/activate/registerCommands.ts

@@ -97,6 +97,9 @@ const getCommandsMap = ({ context, outputChannel, provider }: RegisterCommandOpt
 		await visibleProvider.removeClineFromStack()
 		await visibleProvider.postStateToWebview()
 		await visibleProvider.postMessageToWebview({ type: "action", action: "chatButtonClicked" })
+		// Send focusInput action immediately after chatButtonClicked
+		// This ensures the focus happens after the view has switched
+		await visibleProvider.postMessageToWebview({ type: "action", action: "focusInput" })
 	},
 	mcpButtonClicked: () => {
 		const visibleProvider = getVisibleProviderOrLog(outputChannel)