Refactor entry handling: update date format, enhance entry retrieval, and improve HTML structure

public/templates/entrys_frontend/entrys_frontend.html

@@ -36,6 +36,10 @@
       justify-content: center;
       align-items: center;
     }
+
+    #date {
+        color: gray;
+    }
   </style>
 </head>
 <body>