feat(vscode): add custom activity bar color settings

- Introduces custom color configurations for the activity bar
  and badges in Visual Studio Code.
- Enhances the visual appearance and personalization.

.vscode/settings.json

@@ -0,0 +1,11 @@
+{
+    "workbench.colorCustomizations": {
+        "activityBar.activeBackground": "#b66d9f",
+        "activityBar.background": "#b66d9f",
+        "activityBar.foreground": "#15202b",
+        "activityBar.inactiveForeground": "#15202b99",
+        "activityBarBadge.background": "#b9ca95",
+        "activityBarBadge.foreground": "#15202b"
+    },
+    "peacock.color": "#a05087"
+}