- Created a detailed guide for submitting plugins to Vencord.
- Outlined steps for forking the repository, adding a plugin, and creating a pull request.
- Included guidelines for adhering to Vencord's code structure and standards.
- Explained the review process and licensing requirements.

This commit rewrites the plugin submission guide to remove unnecessary installation instructions, clarify that plugins are first merged into the dev branch, and ensure the correct submission process. Additionally, the guide now correctly links to the Vencord community Discord and removes redundant file listings, focusing on providing clear instructions for submitting pre-made plugins.

I used my break time on my job to rewrite everything, hope it helps :b

- Improve clarity and organization of the plugin submission process
- Add separate instructions for users with existing Vencord installations
- Clarify common pitfalls and best practices
- Include guidance on attaching images to GitHub issues
- Add note about git branching knowledge