feat: convert hypr config to Lua and add Chester host

- Add Lua equivalents for hyprland, autostart, keybindings, programs, windowrule
- Add per-host Lua configs (Chester, Rutherford, example) with hostname detection
- Rename old host 'William' to 'Chester'; fix 2x scaling on the 2880x1800 panel
- Update .gitignore to track *.lua host files instead of example-host.conf

hypr/hosts/example.lua

@@ -0,0 +1,7 @@
+-- example.lua - no-op host fallback (mirrors example.conf)
+--
+-- Used by hyprland.lua when the machine's hostname does not match any
+-- hosts/<hostname>.lua file. Keep this file empty (or add shared defaults).
+-- Create a file named after your host, e.g. hosts/MyHost.lua, to override
+-- host-specific settings.
+return {}