chore: new catchphrase for Camel 3 announcement

This replaces the catchphrase "Integration you want" with "Camel 3.0 is
here, what's new" and links the "what's new" to the Camel 3 changes blog
post.
diff --git a/antora-ui-camel/src/css/frontpage.css b/antora-ui-camel/src/css/frontpage.css
index c64ff55..ad2d529 100644
--- a/antora-ui-camel/src/css/frontpage.css
+++ b/antora-ui-camel/src/css/frontpage.css
@@ -25,6 +25,20 @@
   color: var(--body-font-color);
 }
 
+header.frontpage a {
+  color: var(--heading-font-color);
+  text-decoration: underline;
+}
+
+header.frontpage a:hover {
+  color: var(--heading-font-color);
+  text-decoration: underline;
+}
+
+header.frontpage a:active {
+  color: var(--heading-font-color);
+}
+
 .frontpage a:hover {
   color: var(--color-white);
   text-decoration: none;
diff --git a/layouts/index.html b/layouts/index.html
index b99d9c3..278e956 100644
--- a/layouts/index.html
+++ b/layouts/index.html
@@ -1,7 +1,7 @@
 {{ partial "header.html" . }}
 
 <header class="frontpage">
-  <h1>Integration you want</h1>
+  <h1>&#x1f680; Camel 3.0 is here! <wbr><a href="blog/Camel3-Whatsnew/">what's new</a></h1>
   <svg viewBox="0 0 500 70" preserveAspectRatio="none">
     <path d="M -10,25 C 130,125 330,0 510,5" />
     <path d="M -10,20 C 130,125 330,0 510,2" />