fix default misskey known instances

assets/instance_buttons.js

@@ -33,10 +33,10 @@ import {SLOTS, normalize_known, known_load, known_save} from './known_instances.
                         "instance": "mastodon.social",
                         "hits": 0
                     }],
-                    misskey:[
+                    misskey:[{
                         "instance": "misskey.io",
                         "hits": 0
-                    ],
+                    }],
                 };
             }
             known_save(known)

assets/known_instances.js

@@ -8,10 +8,10 @@ function load_and_migrate_old(){
         olddata = JSON.parse(olddata)
         let newdata = {
             mastodon: olddata,
-            misskey: [
+            misskey: [{
                 "instance": "misskey.io",
                 "hits": 0
-            ]
+            }]
         };
         known_save(newdata);
         localStorage.removeItem(OLD_KEY);