chore: restore echo sphere branding

Author: letam

app/index.html

@@ -10,16 +10,16 @@
   <link rel="apple-touch-icon" href="/pwa-icon.svg" />
   <link rel="manifest" href="/manifest.webmanifest" />
   <meta name="theme-color" content="#0f172a" />
-  <meta name="application-name" content="Web Framework Showcase" />
+  <meta name="application-name" content="Echo Sphere" />
 
-  <title>Web Framework Showcase</title>
+  <title>Echo Sphere</title>
   <meta
     name="description"
-    content="Install the Web Framework Showcase PWA to explore the demo offline and across devices."
+    content="Install the Echo Sphere PWA to explore the demo offline and across devices."
   />
   <!-- <meta name="author" content="" /> -->
 
-  <meta property="og:title" content="Web Framework Showcase" />
+  <meta property="og:title" content="Echo Sphere" />
   <!-- <meta property="og:description" content="" /> -->
   <meta property="og:type" content="website" />
   <!-- <meta property="og:image" content="https://lovable.dev/opengraph-image-p98pqg.png" /> -->

app/public/manifest.webmanifest

@@ -1,11 +1,11 @@
 {
-  "name": "Web Framework Showcase",
-  "short_name": "WebFramework",
+  "name": "Echo Sphere",
+  "short_name": "EchoSphere",
   "start_url": "/",
   "display": "standalone",
   "background_color": "#0f172a",
   "theme_color": "#0f172a",
-  "description": "Explore the Web Framework demo application even when you are offline.",
+  "description": "Explore the Echo Sphere demo application even when you are offline.",
   "icons": [
     {
       "src": "/pwa-icon.svg",