🎉 Remember settings window geometry

[fzlzjerry]

Description

This stores the settings window's normal bounds, maximized state, and left/right sidebar widths in a separate machine-local settings-window-state.json file. Restored window bounds are fitted to the best matching display's current work area, so removing a monitor or changing its resolution cannot leave the settings window off-screen. Missing or invalid state still uses the existing 1350 x 900 window and 370px sidebar defaults.

Sidebar widths are loaded before the settings window is displayed, avoiding a flash of the default layout, and persisted when a resize finishes. Window bounds are saved both when the settings window closes normally and before Kando destroys it during application shutdown.

Focused tests cover state validation, persistence (including sidebar widths), multi-monitor coordinates, off-screen restoration, and oversized windows.

Testing

• npm test (67 passing)
• npm run tscheck
• npm run lint
• npm run prettier

Closes #1462

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[Schneegans]

Thank you very much! From a first glance, this looks very good. Hopefully I'll soon find the time to do a thorough review. On idea: Do you think it could be possible to also restore the width of the left and right sidebars?

[fzlzjerry]

Yes — added in bd4c4d14. Both sidebar widths now live alongside the window bounds in settings-window-state.json, are restored before the window is displayed, and are persisted when resizing finishes. Invalid values fall back safely, while existing users retain the 370px defaults until they resize a sidebar.

I also rebased the branch onto the latest main and reran the full checks: 67 tests, TypeScript, ESLint, and Prettier all pass.