test(webview): add minimal tests for FileIcon and FilePathWithIcon; chore(webview): remove unused dep, restore i18n context, refactor styles and types

Author: MeetSohailCodes

webview-ui/package.json

@@ -51,7 +51,6 @@
 		"lru-cache": "^11.1.0",
 		"lucide-react": "^0.518.0",
 		"mermaid": "^11.4.1",
-		"path-browserify": "^1.0.1",
 		"posthog-js": "^1.227.2",
 		"pretty-bytes": "^7.0.0",
 		"qrcode": "^1.5.4",
@@ -68,6 +67,7 @@
 		"remark-gfm": "^4.0.1",
 		"remark-math": "^6.0.0",
 		"remove-markdown": "^0.6.0",
+		"postcss": "^8.4.49",
 		"shell-quote": "^1.8.2",
 		"shiki": "^3.2.1",
 		"source-map": "^0.7.4",
@@ -78,7 +78,7 @@
 		"tailwindcss-animate": "^1.0.7",
 		"unist-util-visit": "^5.0.0",
 		"use-sound": "^5.0.0",
-		"vscode-material-icons": "^0.1.1",
+		"vscode-material-icons": "^2.4.0",
 		"vscrui": "^0.2.2",
 		"zod": "^3.25.61"
 	},