refactor(docs): improve branding links

Author: simonprovost

docs/BRANDING.md

@@ -1,4 +1,5 @@
-# MCPStack, its Branding & UX Design
+# 🎨 MCPStack, its Branding & UX Design
+# 🎨 MCPStack, its Branding & UX Design
 
 MCPStack is a free and open-source project that values consistency in both its visual identity and user experience. This document presents the branding and user experience (UX) designs that guide the project's development and presentation.
 
@@ -7,7 +8,7 @@ MCPStack is a free and open-source project that values consistency in both its v
 To maintain a consistent visual identity, all branding designs for MCPStack were created using Figma. These designs are available below for interactive visualization.
 
 <div>
-<iframe style="border: 1px solid rgba(0, 0, 0, 0.1);" width="800" height="450" src="https://embed.figma.com/design/cJN85ls2G60j8kHeNkEQyx/MCPStack?node-id=0-1&embed-host=share" allowfullscreen></iframe>
+<iframe style="border: 1px solid rgba(0, 0, 0, 0.1);" width="800" height="450" src="https://www.figma.com/design/cJN85ls2G60j8kHeNkEQyx/MCPStack?node-id=0-1&t=dSmD5t8lIuq3sIEa-1" allowfullscreen></iframe>
 </div>
 
 ## User Experience Design