Update VSCode icons

vscode/quint-vscode/package.json

@@ -2,38 +2,33 @@
 	"name": "quint-vscode",
 	"displayName": "Quint",
 	"description": "Language support for Quint specifications",
-	"icon": "quint-logo-vscode.png",
+	"icon": "./icons/logo.png",
 	"version": "0.14.0",
 	"publisher": "informal",
 	"engines": {
 		"vscode": "^1.52.0"
 	},
-	"categories": [
-		"Programming Languages"
-	],
+	"categories": ["Programming Languages"],
 	"bugs": {
 		"url": "https://github.com/informalsystems/quint/issues"
 	},
 	"repository": {
 		"type": "git",
 		"url": "https://github.com/informalsystems/quint.git"
 	},
-	"activationEvents": [
-		"onLanguage:quint"
-	],
+	"activationEvents": ["onLanguage:quint"],
 	"main": "./client/out/extension",
 	"contributes": {
 		"languages": [
 			{
 				"id": "quint",
-				"aliases": [
-					"Quint",
-					"quint"
-				],
-				"extensions": [
-					".qnt"
-				],
-				"configuration": "./language-configuration.json"
+				"aliases": ["Quint", "quint"],
+				"extensions": [".qnt"],
+				"configuration": "./language-configuration.json",
+				"icon": {
+					"light": "./icons/logo-dark.png",
+					"dark": "./icons/logo-light.png"
+				}
 			}
 		],
 		"grammars": [