chore: release 3.3.0

[github-actions]

🤖 I have created a release beep boop

3.3.0 (2026-09-16)

Features

• add a theme setting (System / Light / Dark) (#334) (c07e114)
• add a theme toggle to the gauge corner (#337) (a1bfca3)
• follow the system dark theme (#331) (9b53a88)
• publish the graphify graph viewer to GitHub Pages (#325) (95bd7d4)
• tell the user when the system stopped background monitoring (#314) (986625b)

Bug Fixes

• give the monitoring-stopped hint time to be read (#329) (3553029)
• give the preference dialogs the app's own Material 3 panel (#336) (c95c6a7)
• make the adaptive-icon background track the artwork it sits under (#330) (3cfdf98)
• point the neutral greys at the app's palette instead of Material's (#342) (c4024a5)
• stop the gauge replaying its intro sweep on every recreate (#341) (57be8c5)
• stop the Graph Viewer workflow claiming it can enable Pages (#327) (e66da7a)
• stop the pre-commit hook recording an empty commit (#320) (ab3c163)

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