fix(desktop): 修复 artifactName 路径错误并移除 deb 构建目标

scoped package name 中的 / 导致 ${name} 作为路径出错，改用 ${productName}；
移除 deb target（fpm 依赖不可用）；补充 package.json 元信息字段

apps/desktop/package.json

@@ -2,6 +2,9 @@
   "name": "@furtherverse/desktop",
   "version": "1.0.0",
   "private": true,
+  "description": "Furtherverse desktop app",
+  "author": "Furtherverse",
+  "homepage": "https://furtherverse.com",
   "type": "module",
   "main": "out/main/index.js",
   "scripts": {