improve font sizing

Author: LinuxJava7

src/components/Navigation/Headerbar.astro

@@ -37,7 +37,7 @@ const { pageTitle } = Astro.props;
     .titlebox {
       display: none;
       margin: 0;
-      font-size: 15px;
+      font-size: 14px;
       font-weight: 500;
       text-align: center;
       background-color: oklch(from var(--accent-color) 0.98 0.03 h / 90%);