fix(count): fix count calculation burned IDs

The reason that we didn't see any FVM hypercerts were because there were
exactly as many certs as filtered IDs. The getAllHypercerts method
filtered out burned IDs and always substracted the length of the array
from the count returned by the API. Which, led to 0, which led to 'no
hypercerts found'

Author: bitbeckers

hypercerts/getAllHypercerts.ts

@@ -192,10 +192,12 @@ export async function getAllHypercerts({
     [],
   );
 
-  const totalCount = Math.max(
-    0,
-    (res.hypercerts.count ?? 0) - filteredIds.size,
-  );
+  const difference = res.hypercerts?.count
+    ? res.hypercerts?.count - data.length
+    : 0;
+  const totalCount = res.hypercerts?.count
+    ? res.hypercerts?.count - difference
+    : 0;
 
   return {
     count: totalCount,