Update homepage text and screenshot

Revised the homepage text to focus on project updates and community support instead of beta access and trading strategies. Updated the screenshot image in the public directory.

Author: BWJ2310

public/screen-shot.png

@@ -250,16 +250,12 @@ const Index = () => {
                     </div>
                     <div className="space-y-3">
                       <p className="text-sm text-muted-foreground">
-                        Request beta access and connect with traders:
+                        Get project updates and connect with traders:
                       </p>
                       <ul className="space-y-1 text-sm">
                         <li className="flex items-center gap-2">
                           <CheckCircle className="h-3 w-3 text-green-500" />
-                          <span>Get beta invitation</span>
-                        </li>
-                        <li className="flex items-center gap-2">
-                          <CheckCircle className="h-3 w-3 text-green-500" />
-                          <span>Trading strategies</span>
+                          <span>Community Supports</span>
                         </li>
                         <li className="flex items-center gap-2">
                           <CheckCircle className="h-3 w-3 text-green-500" />