chore: remove empty entries from flags in compendium packs

gulpfile.js

@@ -58,6 +58,11 @@ function cleanPackEntry(entry, cleanSourceId = true) {
     if (cleanSourceId) {
         delete entry.flags?.core?.sourceId;
     }
+    Object.keys(entry.flags).forEach((scope) => {
+        if (Object.keys(entry.flags[scope]).length === 0) {
+            delete entry.flags[scope];
+        }
+    });
     if (entry.permission) entry.permission = { default: 0 };
 
     const embeddedDocumentCollections = [

src/packs/creatures.json

@@ -5477,9 +5477,7 @@
         "permission": {
             "default": 0
         },
-        "flags": {
-            "core": {}
-        }
+        "flags": {}
     },
     {
         "_id": "CIzMY691MK016h4E",