fix(Folder#toJSON): Make sure children are properly serialized

Signed-off-by: Marcel Klehr <mklehr@gmx.net>

Author: marcelklehr

src/lib/Tree.ts

@@ -516,6 +516,9 @@ export class Folder<L extends TItemLocation> {
       Object.entries(obj).forEach(([key, value]) => {
         if (key === 'index') return
         if (!(key in result)) {
+          if (key === 'children') {
+            value = value.map((child) => child.toJSON())
+          }
           result[key] = value
         }
       })

src/lib/browser/BrowserAccountStorage.js

@@ -146,7 +146,7 @@ export default class BrowserAccountStorage {
   async setCache(data) {
     await BrowserAccountStorage.setEntry(
       `bookmarks[${this.accountId}].cache`,
-      data
+      data.toJSON ? data.toJSON() : data
     )
   }