Fix nav, add light/dark theme toggle and site links

Author: jaschadub

zensical.toml

@@ -2,19 +2,43 @@
 site_name = "AgentPin Documentation"
 site_url = "https://docs.agentpin.org/"
 site_description = "Domain-anchored cryptographic identity protocol for AI agents"
+nav = [
+  {"Home" = "index.md"},
+  {"Getting Started" = "getting-started.md"},
+  {"Verification Flow" = "verification-flow.md"},
+  {"CLI Guide" = "cli-guide.md"},
+  {"Trust Bundles" = "trust-bundles.md"},
+  {"Delegation Chains" = "delegation-chains.md"},
+  {"Deployment" = "deployment.md"},
+  {"Security" = "security.md"},
+  {"Troubleshooting" = "troubleshooting.md"},
+  {"agentpin.org" = "https://agentpin.org"},
+]
 
 [project.repository]
 url = "https://github.com/ThirdKeyAI/agentpin"
 
-[project.nav]
-items = [
-  { title = "Home", path = "index.md" },
-  { title = "Getting Started", path = "getting-started.md" },
-  { title = "Verification Flow", path = "verification-flow.md" },
-  { title = "CLI Guide", path = "cli-guide.md" },
-  { title = "Trust Bundles", path = "trust-bundles.md" },
-  { title = "Delegation Chains", path = "delegation-chains.md" },
-  { title = "Deployment", path = "deployment.md" },
-  { title = "Security", path = "security.md" },
-  { title = "Troubleshooting", path = "troubleshooting.md" },
-]
+[[project.theme.palette]]
+scheme = "default"
+toggle.icon = "lucide/sun"
+toggle.name = "Switch to dark mode"
+
+[[project.theme.palette]]
+scheme = "slate"
+toggle.icon = "lucide/moon"
+toggle.name = "Switch to light mode"
+
+[[project.extra.social]]
+icon = "fontawesome/brands/github"
+link = "https://github.com/ThirdKeyAI/agentpin"
+name = "AgentPin on GitHub"
+
+[[project.extra.social]]
+icon = "fontawesome/solid/globe"
+link = "https://agentpin.org"
+name = "agentpin.org"
+
+[[project.extra.social]]
+icon = "fontawesome/solid/shield-halved"
+link = "https://thirdkey.ai"
+name = "ThirdKey"