Add .prettierrc.json, .markdownlint.json, .yamllint.yaml, .gitattributes
Run CSharpier, Prettier and markdownlint across the entire codebase.
No logic changes — formatting, using order and line endings only.
- Split Appearance into ThemeAndLayout (theme + window-style + timestamps)
and FontsAndColours (fonts + per-channel colours)
- Merge Database into DataManagement together with Retention/Cleanup/Export
from Privacy
- Move HistoryPreload from Privacy to Chat → Auto-Tell-Tabs
- Move KeybindMode from General/Language to General/Input
- Drop OverrideStyle, ChosenStyle, WindowAlpha, ShowThemeQuickPicker
- Migration v15 → v16 maps WindowAlpha → WindowOpacity if Opacity at default
- Add card-subtext per overview card so users do not have to guess where
a setting lives
JonKazama-Hellion