brand: add (you)r* prefix to landing page title

Reinforces the r-suite "your tools" philosophy across all rApp landing pages.
Also normalizes title separators to em-dash (—) for consistency.

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

website/index.html

@@ -4,7 +4,7 @@
 		<meta charset="UTF-8" />
 		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 		<link rel="icon" type="image/png" href="/favicon.png" />
-		<title>rSpace - Collaborative Community Spaces</title>
+		<title>(you)rSpace — Collaborative Community Spaces</title>
 		<style>
 			* {
 				margin: 0;