feature(shields): Add nice!view

* Use two shield system, nice_view, and nice_view_adapter
* Build system fixes for interconnect use.

docs/docs/hardware.mdx

@@ -21,13 +21,13 @@ export const toc = [
     id: "composite",
     level: 2,
   },
-  ...Object.values(groupedMetadata(Metadata).interconnects).map(
-    ({ interconnect }) => ({
+  ...Object.values(groupedMetadata(Metadata).interconnects)
+    .filter((ic) => ic.interconnect !== undefined)
+    .map(({ interconnect }) => ({
       value: `${interconnect.name} Interconnect`,
       id: interconnect.id,
       level: 3,
-    })
-  ),
+    })),
   {
     value: "Other Hardware",
     id: "other-hardware",

docs/src/components/hardware-utils.ts

@@ -41,7 +41,11 @@ function groupedShield(agg: GroupedMetadata, shield: Shield) {
     ic.shields.push(shield);
     agg.interconnects[id] = ic;
   });
-
+  shield.exposes?.forEach((id) => {
+    let ic = agg.interconnects[id] ?? { boards: [], shields: [] };
+    ic.shields.push(shield);
+    agg.interconnects[id] = ic;
+  });
   return agg;
 }