chore: stop tracking .vscode editor settings (v0.23.2-beta)

Personal editor preferences — font size and colour theme — were swept into the
previous commit by git add -A. Committing them would override every other
contributor's editor configuration. Removed from tracking and .vscode/ added to
.gitignore.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mikrotik-manager-frontend",
-  "version": "0.23.1-beta",
+  "version": "0.23.2-beta",
   "private": true,
   "type": "module",
   "scripts": {