pr: Update part of the docs (#17)

* Add cursor rendering section to window manager documentation

* Add cursor scale system commands to syscalls.md

* Add settings documentation for BoredOS

* Document cross-compiler build instructions for Linux

* Create README.md for BoredOS architecture documentation

* Update Architecture Overview link in README

* Reorganize Color Settings section in settings.md

docs/usage/settings.md

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+# Settings
+
+Settings is a system configuration application providing a graphical interface to manage BoredOS preferences across multiple categories.
+
+## Main Menu
+
+The Settings application presents seven configuration categories, each with its own icon and panel:
+
+- **Wallpaper** — Manage desktop background images and patterns
+- **Network** — Configure network interfaces and connectivity
+- **Desktop** — Control desktop layout and icon alignment
+- **Mouse** — Adjust mouse speed and cursor appearance
+- **Fonts** — Browse and select system fonts
+- **Display** — Configure screen resolution
+- **Keyboard** — Select keyboard layout
+
+## Wallpaper
+
+### Image Selection
+
+- Browse wallpapers stored in `/Library/images/Wallpapers/`
+- Supported formats: JPEG (`.jpg`)
+- Thumbnails (80×50 pixels) are generated for preview
+- Selected wallpaper is applied immediately to the desktop background
+
+### Patterns
+
+The Wallpaper panel provides built-in pattern options:
+
+- **Lumberjack Pattern** — Checkered pattern with red, dark grey, and black colors
+- **Blue Diamond Pattern** — Geometric diamond design
+
+Patterns are rendered procedurally (128×128 pixels) and can be applied as alternatives to image wallpapers.
+
+### Color Settings
+
+Six color presets are available for quick selection, with RGB textbox inputs for custom color values.
+
+
+## Network
+
+### Configuration
+
+- Set static IP address via textbox input
+- Configure DNS server address
+- Network status is displayed after initialization
+- Settings are applied through the `NET_INIT`, `NET_SET_IP`, and `NET_SET_DNS` controls
+
+## Desktop
+
+### Layout Control
+
+- **Snap to Grid** — Enable/disable automatic icon alignment to grid positions
+- **Auto Align** — Automatically reorganize icons when enabled
+- **Columns** — Adjust maximum number of columns for icon layout (configurable with +/- buttons)
+- **Rows per Column** — Set maximum rows within each column
+
+Desktop grid settings are stored as `desktop_max_rows_per_col` and `desktop_max_cols`.
+
+## Mouse
+
+### Cursor Control
+
+- **Mouse Speed** — Adjust pointer movement sensitivity
+- **Cursor Scale** — Increase or decrease cursor size using +/− buttons
+  - Settings communicates with the kernel WM using `SYSTEM_GET_CURSOR_SCALE` and `SYSTEM_SET_CURSOR_SCALE` syscalls
+  - Cursor changes are applied instantly and visibly in real-time
+
+## Fonts
+
+### System Fonts
+
+- Browse available fonts from `/Library/Fonts/`
+- Font list is dynamically loaded with scrollbar for navigation
+- Each font displays an icon and name
+- Fonts are listed with entry structures containing path and name information
+
+## Display
+
+### Resolution Selection
+
+- Choose from dynamic resolution options based on physical screen size:
+  - 50% of screen resolution
+  - 75% of screen resolution
+  - Full screen resolution (100%)
+- Custom resolution entry via textbox (width and height)
+- Apply button commits the selected resolution change
+
+
+## Keyboard
+
+### Layout Selection
+
+- Available keyboard layouts can be selected from a dropdown
+- Layout state is maintained as `keyboard_layout`
+- Selection applies to system-wide keyboard input
+
+---
+
+[Return to Documentation Index](../README.md)