umint: MainActivity: Convert permission info to greetings.

Author: Hadad

app/src/main/java/space/hf/umint_ai/MainActivity.java

@@ -300,7 +300,7 @@ public void onRequestPermissionsResult(int requestCode, String[] permissions, in
                 }
             }
             if (!allGranted) {
-                Toast.makeText(this, "Permission denied. Some features may not work.", Toast.LENGTH_LONG).show();
+                Toast.makeText(this, "Welcome to UltimaX Intelligence! If no permissions are granted to the app, some OpenWebUI features will not function. Please make sure to read the discussion at https://huggingface.co/spaces/umint/ai/discussions/15 before using this app.", Toast.LENGTH_LONG).show();
             }
         }
     }