Add comprehensive styles for video streaming and chat interface

- Implement base styles for the application layout and components.
- Define color variables for consistent theming.
- Style the video player, chat section, and user interface elements.
- Add responsive design adjustments for mobile devices.
- Include animations for buttons and notifications for enhanced user experience.

.vscode/launch.json

@@ -0,0 +1,14 @@
+{
+  "configurations": [
+    {
+      "type": "php",
+      "request": "launch",
+      "name": "Launch PHP Program",
+      "program": "${workspaceFolder}/index.php",
+      "runtimeArgs": [
+        "-dxdebug.start_with_request=yes"
+      ],
+      "port": 9003
+    }
+  ]
+}