feat: add rel "me" to mastodon links

includes/header.php

@@ -6,9 +6,9 @@
             <button type="submit"><i class="fas fa-search"></i></button>
         </form>
     </div>
-    
+
     <div class="social-icons">
-        <a target="_blank" rel="noreferrer" href="<?php echo MASTODON_URL; ?>" class="icon-button"><i class="fab fa-mastodon icon-mastodon"></i></a>
+        <a target="_blank" rel="me noreferrer" href="<?php echo MASTODON_URL; ?>" class="icon-button"><i class="fab fa-mastodon icon-mastodon"></i></a>
         <a target="_blank" rel="noreferrer" href="<?php echo INSTAGRAM_URL; ?>" class="icon-button"><i class="fab fa-instagram icon-instagram"></i></a>
         <a target="_blank" rel="noreferrer" href="<?php echo TIKTOK_URL; ?>" class="icon-button"><i class="fab fa-tiktok icon-tiktok"></i></a>
         <div class="more-social-container">
@@ -26,7 +26,7 @@
             </div>
         </div>
     </div>
-    
+
     <div class="action-icons">
         <button id="install-pwa" class="icon-button install-pwa-button" style="display: none;" title="Installer l'application">
             <i class="fas fa-download"></i>