[Icon Request]: Add `type` folder name to `types-folder`

### Icon Type - [x] 📁 Folder - [ ] 📄 File ### Folder names - `type` ### File names _No response_ ### Graphic ideas `type-folder` ### Additional context My typical folder naming convention is `class`, `constant`, `enum`, `interface`, and would-be `type`, however, there's no icon associated with a folder named `type`, which is awkward. `types` does, which prompts me to use the convention of plurals, i.e. `classes`, `constants`, `enums`, etc. ### Code of Conduct - [x] I agree to follow this project's **Code of Conduct**