Fix swiyu nav bar colors: black text for user info, blue for links

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: zdavatz

app/views/index.scala.html

@@ -63,10 +63,10 @@
         <!-- SWIYU LOGIN STATUS -->
         <div class="nav-button" id="swiyu-status" style="float: right; margin-right: 12px; line-height: 48px;">
             @if(vc.swiyuAuthenticated) {
-                <span style="font-size: 13px; color: #fff;">@vc.swiyuFullName (GLN: @vc.swiyuGln)</span>
-                <a href="/swiyu/logout" style="font-size: 13px; color: #aaa; margin-left: 8px;">Logout</a>
+                <span style="font-size: 13px; color: #000;">@vc.swiyuFullName (GLN: @vc.swiyuGln)</span>
+                <a href="/swiyu/logout" style="font-size: 13px; color: blue; margin-left: 8px;">Logout</a>
             } else {
-                <a href="/swiyu" style="font-size: 13px; color: #fff;">swiyu Login</a>
+                <a href="/swiyu" style="font-size: 13px; color: blue;">swiyu Login</a>
             }
         </div>
         <!-- SPONSORS BUTTONS -->