feat: add shiki to markdown rendering for code highlighting

pnpm-lock.yaml

@@ -74,6 +74,12 @@ importers:
       astro-icon:
         specifier: ^1.1.5
         version: 1.1.5
+      marked:
+        specifier: ^17.0.1
+        version: 17.0.1
+      marked-shiki:
+        specifier: 1.2.1
+        version: 1.2.1(marked@17.0.1)(shiki@3.21.0)
       mdast-util-to-string:
         specifier: ^4.0.0
         version: 4.0.0
@@ -3730,6 +3736,17 @@ packages:
   markdown-table@3.0.4:
     resolution: {integrity: sha512-wiYz4+JrLyb/DqW2hkFJxP7Vd7JuTDm77fvbM8VfEQdmSMqcImWeeRbHwZjBjIFki/VaMK2BhFi7oUUZeM5bqw==}
 
+  marked-shiki@1.2.1:
+    resolution: {integrity: sha512-yHxYQhPY5oYaIRnROn98foKhuClark7M373/VpLxiy5TrDu9Jd/LsMwo8w+U91Up4oDb9IXFrP0N1MFRz8W/DQ==}
+    peerDependencies:
+      marked: '>=7.0.0'
+      shiki: '>=1.0.0'
+
+  marked@17.0.1:
+    resolution: {integrity: sha512-boeBdiS0ghpWcSwoNm/jJBwdpFaMnZWRzjA6SkUMYb40SVaN1x7mmfGKp0jvexGcx+7y2La5zRZsYFZI6Qpypg==}
+    engines: {node: '>= 20'}
+    hasBin: true
+
   math-intrinsics@1.1.0:
     resolution: {integrity: sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==}
     engines: {node: '>= 0.4'}
@@ -10070,6 +10087,13 @@ snapshots:
 
   markdown-table@3.0.4: {}
 
+  marked-shiki@1.2.1(marked@17.0.1)(shiki@3.21.0):
+    dependencies:
+      marked: 17.0.1
+      shiki: 3.21.0
+
+  marked@17.0.1: {}
+
   math-intrinsics@1.1.0: {}
 
   maxmin@2.1.0: