docs(hub-ui): retain icon failure handling rationale

Author: dvcolomban

packages/hub-ui/src/client/components/icons/IconifyIcon.vue

@@ -36,6 +36,7 @@ watchEffect(async (onCleanup) => {
       iconifyLoaded.value = svg
   }
   catch {
+    /** Keep fetch failures local to the icon so the surrounding panel remains usable. */
     if (active)
       failed.value = true
   }

packages/hub-ui/src/client/utils/iconify.ts

@@ -24,6 +24,7 @@ export async function getIconifySvg(collection: string, icon: string) {
 
   async function _get() {
     const url = `https://api.iconify.design/${collection}/${icon}.svg?color=currentColor&width=100%`
+    /** Bound stalled requests so the caller can display its failure glyph. */
     const response = await fetch(url, { signal: AbortSignal.timeout(10_000) })
     if (!response.ok)
       throw new Error(`Iconify request failed: ${response.status}`)