add button for 2024, 2025, 2026 years

public/index.html

@@ -202,6 +202,9 @@
       <button class="btn" style="background-color: lightgray;" id="filter2021" onclick="filter(2021)">2021</button>
 	    <button class="btn" style="background-color: lightgray;" id="filter2022" onclick="filter(2022)">2022</button>
 	    <button class="btn" style="background-color: lightgray;" id="filter2023" onclick="filter(2023)">2023</button>
+      <button class="btn" style="background-color: lightgray;" id="filter2024" onclick="filter(2024)">2023</button>
+      <button class="btn" style="background-color: lightgray;" id="filter2025" onclick="filter(2025)">2023</button>
+      <button class="btn" style="background-color: lightgray;" id="filter2026" onclick="filter(2026)">2023</button>
     </div>
     <div class="container" id="cont_paper">
       <!-- <div class="card" style="max-width: 1080px;">