fix: logviewer and widget

[shczhen]

• refactor logviewer backstage (use batch updates)
• fix: backstage widgets unexpectedly reloaded

[Copilot]

Pull Request Overview

This PR refactors the log viewer functionality by introducing batch updates for log buffering and debounced log appending, and also fixes an issue with backstage widgets being unexpectedly reloaded.

• Introduces a new debounced function (appendLogsById) in the widget store for batch log updates.
• Updates the LogViewerWidget to use the new batch update function.
• Removes an unnecessary dependency from the LogViewerPopup component to prevent unintended reloads.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

File	Description
core/src/ten_manager/designer_frontend/src/store/widget.tsx	Added debounced log buffering/updating mechanism for batch log updates.
core/src/ten_manager/designer_frontend/src/components/Widget/LogViewerWidget.tsx	Replaced direct calls to appendLogViewerHistory with the new debounced appendLogsById.
core/src/ten_manager/designer_frontend/src/components/Popup/LogViewer.tsx	Adjusted useEffect dependency array to resolve reload issues.