Link directly to individual global enums/structs in documentation

Previously, we sent users to the top of the page whenever they
click on a property that refers to a global enum/struct in our
documentation. However the page is already filled with permalinks
we can use, so I made it so we assume there's a permalink.

If the permalink doesn't exist, it would just send them back to
the top of the page anyway which was the previous status quo.

Author: redstrate

docs/common/src/components/SlintProperty.astro

@@ -57,6 +57,14 @@ const typeInfo = getTypeInfo(typeName);
 if (typeInfo.href !== "") {
     const base = import.meta.env.BASE_URL;
     typeInfo.href = `${base}${typeInfo.href}`;
+
+    // For enums and structs, we can assume they have a permalink to their header on the target page.
+    // (These permalinks are also always lower-case.)
+    if (typeName === "enum") {
+        typeInfo.href += "#" + enumName.toLowerCase();
+    } else if (typeName === "struct") {
+        typeInfo.href += "#" + structName.toLowerCase();
+    }
 }
 const enumContent = await getEnumContent(enumName);
 const structContent = await getStructContent(structName);