Added mango.desktop for the MangoWC

## Add `mango.desktop` file for Mango Wayland Compositor ### Summary This Pull Request introduces a `.desktop` file for `mangowc`, a lightweight wlroots Wayland compositor inspired by `dwl`. The addition ensures that `mangowc` (binary: `mango`) is now easily launchable through display/login manager. The `mango.desktop` file is located in the `example-units` directory to keep it alongside related configurations. ### Changes Introduced 1. Added a new `mango.desktop` file with the following content: ```ini [Desktop Entry] Name=Mango Comment=A lightweight wlroots Wayland compositor inspired by dwl Exec=mango Type=Application Keywords=wlroots;window;compositor;wayland Categories=System;Utility; ``` ### Motivation The inclusion of this desktop entry improves usability in several ways: - **Desktop Environment Integration**: Enables users to quickly launch `mangowc` from graphical menus instead of requiring terminal commands. - **Improved Workflow in `uwsm`**: Allows `uwsm` to launch `mangowc` (Mango) seamlessly using the `uwsm start mango` command, ensuring better integration with the `uwsm-plugins`. ### Placement The file is placed in the `example-units` directory to align with related configurations, ensuring proper organization and easier reference. ### Testing - No testing was performed for this change. ### Instructions for Deployment 1. Copy the `mango.desktop` file into a system-wide location such as: - `/usr/share/applications/` 2. Or place it in a user-specific location: - `~/.local/share/applications/` 3. Once placed, ensure `mango` is properly added to the `$PATH` or adjust the `Exec` field in the `.desktop` file to point to the binary’s absolute path. ### Related Work The main goal of this change was to ensure that `uwsm` can launch `mangowc` seamlessly using the `uwsm start mango` command. This `.desktop` file addition improves the overall experience of integrating `mangowc` into the `uwsm` ecosystem and complements the work done to include `mango` in `uwsm-plugins`. ### Screenshots (if applicable) N/A ### Checklist - [x] `.desktop` file created. - [ ] Testing performed (no testing was done as part of this change). - [x] Improves user experience and accessibility. - [x] Aligns with project conventions (`example-units` directory). --- Let me know if further changes are needed!