feat: add csrf to go web server

[takanome-dev]

What type of PR is this? (check all applicable)

• [x] 💡 Feature
• [ ] 🐛 Bug Fix
• [ ] 📝 Documentation Update
• [ ] 🎨 Style
• [ ] 🧑‍💻 Code Refactor
• [ ] 🔥 Performance Improvements
• [ ] ✅ Test
• [ ] 🤖 Build
• [ ] 🔁 CI
• [ ] ⏩ Revert

Description

This pr adds a CSRF protection(token) to the Go web server.

Related Tickets & Documents

Fixes #56

Mobile & Desktop Screenshots/Recordings

[optional] What gif best describes this PR or how it makes you feel?

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
blog-with-astro-golang	✅ Ready (Inspect)	Visit Preview	Oct 17, 2023 6:31pm