fix(cms): add _resolve parameter to getCalendarItems for comprehensive data retrieval

- Updated getCalendarItems function to include the _resolve parameter set to "all", ensuring all related data is fetched.
- Refined getHref function in DeadlineBannerBlock.svelte to simplify link handling by directly checking for the url property.

src/lib/cms.ts

@@ -676,6 +676,7 @@ export async function getCalendarItems(
     const base = getBaseUrl();
     const url = new URL(`${base}/api/content/calendar_item`);
     url.searchParams.set("_per_page", "1000");
+    url.searchParams.set("_resolve", "all");
     if (options?.locale) url.searchParams.set("_locale", options.locale);
     const res = await fetch(url.toString());
     if (!res.ok) return [];

src/lib/components/blocks/DeadlineBannerBlock.svelte

@@ -71,10 +71,7 @@
 
   function getHref(link: DeadlineBannerBlockData["link"]): string {
     if (typeof link === "string" && link) return link;
-    if (link && typeof link === "object") {
-      if (link.url) return link.url;
-      if (link._slug) return `/post/${encodeURIComponent(link._slug)}`;
-    }
+    if (link && typeof link === "object" && link.url) return link.url;
     return "";
   }
   const href = $derived(getHref(linkValue));