changed readable format to json

lib/api/controllers/links/linkId/deleteLinkById.ts

@@ -32,7 +32,7 @@ export default async function deleteLink(userId: number, linkId: number) {
     filePath: `archives/${collectionIsAccessible?.id}/${linkId}.png`,
   });
   removeFile({
-    filePath: `archives/${collectionIsAccessible?.id}/${linkId}_readability.txt`,
+    filePath: `archives/${collectionIsAccessible?.id}/${linkId}_readability.json`,
   });
 
   return { response: deleteLink, status: 200 };

lib/api/controllers/links/linkId/updateLinkById.ts

@@ -104,8 +104,8 @@ export default async function updateLinkById(
       );
 
       await moveFile(
-        `archives/${collectionIsAccessible?.id}/${linkId}_readability.txt`,
-        `archives/${data.collection.id}/${linkId}_readability.txt`
+        `archives/${collectionIsAccessible?.id}/${linkId}_readability.json`,
+        `archives/${data.collection.id}/${linkId}_readability.json`
       );
     }