improvemnts:

- ordering of bookmarks
- limitation of bookmarks on index page
- date for bookmarks that did not have a date before the transition

frontend/src/routes/bookmark/Index.svelte

@@ -40,8 +40,8 @@
         }
     }
 
-    async function loadBookmarks(){
-        const url  = api('bookmark/list');
+    async function loadBookmarks(offset=0,limit=100){
+        const url  = api(`bookmark/list?offset=${offset}&limit=${limit}`);
         const resp = await fetch(url,{credentials:'include'});
         if (resp.ok){
             const raw = await resp.json();