fix: resolve VM startup failures, broken Hyprland functionality, and theme integration

- Fix QEMU syntax and root filesystem conflicts in vm-guest.nix.
- Repair numerous broken relative paths and imports across the codebase.
- Set 'summer-night' as the default distro theme with full branding integration.
- Implement declarative system-wide font installation including the 'nomarchy' font.
- Fix Waybar startup by dynamically generating theme-aware CSS.
- Restore Hyprland keybindings (Super+Return, Super+Space) and wallpaper loading.
- Add missing scripts: nomarchy-launch-walker, nomarchy-toggle-waybar, nomarchy-refresh-config.
- Enable UWSM and correctly disable conflicting Hyprland systemd services.

features/desktop/waybar/config/config.jsonc

@@ -138,13 +138,13 @@
   },
   "custom/screenrecording-indicator": {
     "on-click": "nomarchy-cmd-screenrecord",
-    "exec": "$OMARCHY_PATH/default/waybar/indicators/screen-recording.sh",
+    "exec": "~/.config/nomarchy/default/waybar/indicators/screen-recording.sh",
     "signal": 8,
     "return-type": "json"
   },
   "custom/idle-indicator": {
     "on-click": "nomarchy-toggle-idle",
-    "exec": "$OMARCHY_PATH/default/waybar/indicators/idle.sh",
+    "exec": "~/.config/nomarchy/default/waybar/indicators/idle.sh",
     "signal": 9,
     "return-type": "json"
   },