Bump version to 0.2.1

Tray-icon single-instance fix (5ec8c98) landed after the v0.2.0 tag was
cut, so v0.2.0's release bundles don't include it. Bumping to release it.

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

Author: CMercs

MainFrame/package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "mainframework",
   "private": true,
-  "version": "0.2.0",
+  "version": "0.2.1",
   "type": "module",
   "repository": {
     "type": "git",

MainFrame/package.json

@@ -1,6 +1,6 @@
 [package]
 name = "mainframework"
-version = "0.2.0"
+version = "0.2.1"
 description = "A unified desktop control panel for Framework hardware"
 authors = ["AllStoneTech"]
 edition = "2021"

MainFrame/src-tauri/Cargo.lock

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "MainFrameWork",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "identifier": "com.allstonetech.mainframe",
   "build": {
     "beforeDevCommand": "npm run dev",