Window style change

[webfiltered]

• Based on Fix exception on window style change #599
• Requires [Desktop] Fix unnecessary setting update ComfyUI_frontend#2301
  • Infinite loop caused by setting being updated when it has not changed
• Requires Fix duplication in window closed logic #671
  • Split from this PR

Current

• When window style is changed in settings, the entire app and ComfyUI server must be restarted.
• User can select no, which would require additional handling to clean up invalid state.

Proposed

• Spawn a replacement window and load the original URL.

┆Issue is synchronized with this Notion page by Unito

[webfiltered]

Updated requirements for this PR (from rebases) - this can wait for frontend PR to land.

[comfy-pr-bot]

Test Evidence Check

⚠️ Warning: Test Explanation Missing

If this PR modifies behavior that requires testing, a test explanation is required. PRs lacking applicable test explanations may not be reviewed until added. Please add test explanations to ensure code quality and prevent regressions.

⚠️ Warning: Visual Documentation Missing

If this PR changes user-facing behavior, visual proof (screen recording or screenshot) is required. PRs without applicable visual documentation may not be reviewed until provided.

You can add it by:

• GitHub: Drag & drop media directly into the PR description
• YouTube: Include a link to a short demo