Mention the changelog dot in the changelog

The previous commit's edit to the dialog missed its anchor and applied
nowhere, so the entry never mentioned the dot it was describing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NX2SsmUqQftWTZAY4BDuFa

src/app/page.tsx

@@ -1021,6 +1021,10 @@ export default function Home() {
                   longer conversations stay linked to the right card. If sucker
                   never worked for you, give it another go.
                 </p>
+                <p>
+                  The Changelog button also carries a dot now when there is
+                  something here you haven&apos;t read.
+                </p>
               </div>
             </div>
             <Separator />