refactor: consolidate app configurations and utility scripts

- Move 32+ app-specific scripts from features/apps/scripts/ to features/scripts/utils/ for centralized packaging.
- Create individual Nix modules for orphaned app configurations (btop, kitty, tmux, etc.) in features/apps/ using xdg.configFile.
- Fix broken paths in core/system/makima.nix and features/apps/vscode.nix.
- Update VSCode configuration to use the modern 'profiles.default.userSettings' API, resolving deprecation warnings.
- Merge duplicate 'nomarchy-launch-walker' scripts into a single robust utility.
- Remove stale root 'config/' directory.
- Update README.md and docs/creating-themes.md to reflect the new architecture and keybindings.
- Ensure all modules are correctly imported and verified via nix flake check.

README.md

@@ -15,11 +15,14 @@
 
 ## 📂 Component-Based Architecture
 
-Nomarchy uses a **Feature-Centric Directory Structure**. Instead of grouping files by type (e.g., all scripts in one folder, all configs in another), everything related to a specific component is colocated.
+Nomarchy uses a **Feature-Centric Directory Structure**. Configuration, modules, and utilities are strictly organized to maintain sanity as the system grows.
 
-- **`core/`**: Foundational OS & User defaults (Bootloader, Audio, Bluetooth, basic shell).
-- **`features/`**: Isolated modules containing Nix logic, raw dotfiles, and scripts for a specific app or service (e.g., `features/desktop/waybar/`).
-- **`themes/`**: The global theming engine. It holds pure color data and logic. *Theme-specific app layouts* (like a custom Waybar layout for `summer-night`) are stored directly inside the app's feature folder (`features/desktop/waybar/themes/`), solving the matrix problem of theming.
+- **`core/`**: Foundational OS & User defaults (Bootloader, Audio, Bluetooth, core system features).
+- **`features/`**: Isolated modules containing Nix logic and raw dotfiles.
+  - **`features/apps/`**: App-specific configs (e.g., `features/apps/btop/`, `features/apps/kitty/`), each containing their own `default.nix` and standalone `config/` directory mapped via Home Manager.
+  - **`features/desktop/`**: Desktop environment components (e.g., Hyprland, Waybar).
+  - **`features/scripts/utils/`**: Consolidated repository for all custom Nomarchy bash scripts, centrally packaged and injected into the user's `PATH` with correct dependencies.
+- **`themes/`**: The global theming engine. It holds pure color data and logic. *Theme-specific app layouts* (like a custom Waybar layout) are stored directly inside the app's feature folder, solving the matrix problem of theming.
 
 ---
 
@@ -89,18 +92,19 @@ env-update  # Reloads your Home Manager environment (Runs: home-manager switch -
 
 | Keybinding | Action |
 | :--- | :--- |
-| `Super + Alt + Space` | **Theme Selector** (Walker) |
-| `Super + Ctrl + Space` | **Font Selector** |
-| `Super + Shift + Space`| **Wallpaper Selector** |
 | `Super + Space` | **App Launcher** (Walker) |
+| `Super + Shift + Space` | **Nomarchy Menu** (Walker) |
+| `Super + Ctrl + Space` | **Background Selector** (Walker) |
+| `Super + Shift + Ctrl + Space` | **Theme Selector** (Walker) |
+| `Super + Alt + Space` | **Toggle Top Bar** (Waybar) |
 | `Super + Return` | Open Terminal |
 | `Super + Q` | Close Window |
 
 ### Utility Scripts
-Nomarchy includes 150+ productivity scripts available in your PATH:
+Nomarchy includes dozens of productivity scripts available in your PATH. Some highlights:
 - `nomarchy-sync push <repo>`: Backup your setup to Git.
 - `nomarchy-theme-bg-next`: Cycle to the next wallpaper in the current theme.
-- `nomarchy-doctor`: (Coming Soon) Diagnose system health and state.
+- `nomarchy-menu`: The central hub for all utilities and pickers.
 
 ---
 *Built with ❤️ using NixOS, Hyprland, Stylix, and the spirit of Omarchy.*