Gedit Dracula Installer

Hello Dracula Gedit Maintainers,

I have developed a robust Shell Script installer (`gdt_installer.sh`) designed to significantly simplify the installation of the Dracula theme across all common Gedit installation methods on Linux.

The goal is to provide a single, reliable command that handles the current complexity of Gedit configuration paths, especially for containerized environments.

### Key Features of the Installer:

* **Multi-Environment Support:** Automatically attempts installation in four known configuration paths:
* Native Legacy (`< v46`)
* Native Modern (`>= v46`)
* Flatpak (`>= v46`)
* Snap (`>= v46`)
* **Robust Pre-flight Checks:** Verifies connectivity, dependencies (`curl`), and handles HTTP errors (like 429 Rate Limit) between theme file downloads.
* **Clean User Experience:** Provides clear success/failure messages, including specific **warnings and alternatives for Snap users**.

I believe integrating this script into the main repository would be a huge quality-of-life improvement for your Linux user base, reducing the support load related to manual path configuration.

**You can review the script and documentation (README) here:**
[https://github.com/mozertdev/gedit-dracula-installer](https://github.com/mozertdev/gedit-dracula-installer)

Let me know if you like it.

Thank you for maintaining this fantastic theme!