fix: Improve null checks in find embedded entry and find embedded asset functions

Author: harshithad0703

src/entry-editable.ts

@@ -16,7 +16,7 @@ function getTag(content: object, prefix: string, tagsAsObject: boolean, locale:
     const { metaKey, shouldApplyVariant, _applied_variants } = appliedVariants
     Object.entries(content).forEach(([key, value]) => {
         if (key === '$') return
-        let metaUID = value && typeof value === 'object' && value._metadata && value._metadata.uid ? value._metadata.uid : '';
+        let metaUID = value && typeof value === 'object' && value !== null && value._metadata && value._metadata.uid ? value._metadata.uid : '';
         let updatedMetakey = appliedVariants.shouldApplyVariant ? `${appliedVariants.metaKey ? appliedVariants.metaKey + '.' : ''}${key}` : '';
         if (metaUID && updatedMetakey) updatedMetakey = updatedMetakey + '.' + metaUID;
         switch (typeof value) {
@@ -25,7 +25,7 @@ function getTag(content: object, prefix: string, tagsAsObject: boolean, locale:
                     value.forEach((obj, index) => {
                         const childKey = `${key}__${index}`
                         const parentKey = `${key}__parent`
-                        metaUID = value && typeof value === 'object' && obj._metadata && obj._metadata.uid ? obj._metadata.uid : '';
+                        metaUID = value && typeof value === 'object' && obj !== null && obj._metadata && obj._metadata.uid ? obj._metadata.uid : '';
                         updatedMetakey = appliedVariants.shouldApplyVariant ? `${appliedVariants.metaKey ? appliedVariants.metaKey + '.' : ''}${key}` : '';
                         if (metaUID && updatedMetakey) updatedMetakey = updatedMetakey + '.' + metaUID;
                         /**

src/helper/find-embeded-object.ts

@@ -11,21 +11,26 @@ export function findEmbeddedEntry(
   embeddeditems: (EmbeddedItem| EntryNode)[] = [],
 ): (EmbeddedItem | EntryNode)[] {
   return embeddeditems.filter((entry: any) => {
-    if ((entry.uid && (entry as EmbeddedItem).uid === uid && (entry as EmbeddedItem)._content_type_uid === contentTypeUid)|| (entry.system && (entry as EntryNode).system.uid === uid && (entry as EntryNode).system.content_type_uid === contentTypeUid)) {
-      return entry;
-    }
+    if (!entry) return false;
+    return (
+      (entry.uid && (entry as EmbeddedItem).uid === uid && (entry as EmbeddedItem)._content_type_uid === contentTypeUid) ||
+      (entry.system && (entry as EntryNode).system.uid === uid && (entry as EntryNode).system.content_type_uid === contentTypeUid)
+    );
   });
 }
 
 export function findEmbeddedAsset(uid: string, embeddedAssets: (EmbeddedItem| EntryNode)[] = []): (EmbeddedItem| EntryNode)[] {
   return embeddedAssets.filter((asset: any) => {
-    if ((asset.uid && (asset as EmbeddedItem).uid === uid) || asset.system && (asset as EntryNode).system.uid === uid) {
-      return asset;
-    }
+    if (!asset) return false;
+    return (
+      (asset.uid && (asset as EmbeddedItem).uid === uid) ||
+      (asset.system && (asset as EntryNode).system.uid === uid)
+    );
   });
 }
 
 export function findGQLEmbeddedItems(metadata: Metadata, items: (EmbeddedItem| EntryNode)[]): (EmbeddedItem| EntryNode)[] {
+  if (!metadata || !items) return [];
   if (metadata.itemType === 'entry') {
     return findEmbeddedEntry(
         metadata.itemUid,