[Enhancement]: Allow the File editor export plugins to github

[fellyph]

Describe the solution you'd like

Using the new coding editor at the WordPress Playground. I want to export my work from the editor to my GitHub repository. Once I have created the plugin, I can preview it on the playground, but it wasn't listed on the export drop-down:

https://github.com/user-attachments/assets/3acb6c8c-cbe6-4859-bcdb-23f70d5d90f6

Steps to reproduce it:

• Click on the menu to export to GitHub
• Connect with your GitHub account
• Select the option I'm exporting a plugin
• Try to select which plugin you would like to export
• The new plugin won't be listed

I want to export only the plugin I created with the tool.

I also tried to download the wp-content, but the folder didn't come with the latest changes made on the playground code editor

Describe alternatives you've considered

• Another alternative will be to include the possibility to download the plugin folder from the code editor.

Additional context

No response