feat: Add the logo of the built-in extension (microsoft#192999)

* feat: Add the logo of the built-in extension

* chore(extension): add compressed icon

---------

Co-authored-by: Martin Aeschlimann <martinae@microsoft.com>

Author: 2 people

extensions/ipynb/media/icon.png

@@ -5,6 +5,7 @@
 	"publisher": "vscode",
 	"version": "1.0.0",
 	"license": "MIT",
+  "icon": "media/icon.png",
 	"engines": {
 		"vscode": "^1.57.0"
 	},

extensions/ipynb/package.json

@@ -5,6 +5,7 @@
 	"publisher": "vscode",
 	"version": "1.0.0",
 	"license": "MIT",
+  "icon": "media/icon.png",
 	"engines": {
 		"vscode": "^1.57.0"
 	},