feat(deepseek): init

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🎉 Theme for DeepSeek 🎉

WIP, site uses a lot of autogenerated classes which makes things like primary buttons and the shadow at the top of the chat window hard to theme, but I'll try!

💬 Additional Comments 💬

🗒 Checklist 🗒

• I have read and followed Catppuccin's submission guidelines.
• I have made a new directory underneath /styles/<name-of-website> containing the contents of the /template directory.
  • I have ensured that the new directory is in lower-kebab-case.
  • I have followed the template and kept the preprocessor as LESS.
• I have made sure to update the userstyles.yml file with information about the new userstyle.
• I have included the following files:
  • catppuccin.user.less - all the CSS for the userstyle, based on the template.
  • preview.webp - composite image of all four individual flavor screenshots (taken with the default accent color of mauve) stitched together, generated via Catwalk.