Add SSH key documentation to Resources section

[Copilot]

Users need guidance on locating SSH public keys for server authentication and system access.

Changes

• New Resources/FAQ section with comprehensive SSH key documentation

  • Platform-specific instructions (macOS, Linux, Windows)
  • Key generation commands for users without existing keys
  • Security best practices (permissions, passphrases, private key handling)
  • Basic SSH connection examples

• Navigation updates added "Resources" link to main nav and footer

• Styling matches existing design system with gradient cards, hover effects, and responsive layout

Example Content

# Find existing public key
cat ~/.ssh/id_rsa.pub

# Generate new key
ssh-keygen -t ed25519 -C "your_email@example.com"

# Connect to server
ssh username@server-address

Screenshot

The section includes three FAQ items covering key location, security practices, and server connections.

Original prompt

where can i find my public ssh key

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.