feat: build for both architectures (x86 and x64) on Windows (#1262)

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 ### Added
    * Add keyboard shortcut to quit the app on Windows ([#1202](https://github.com/lbryio/lbry-app/pull/1202))
+   * Build for both architectures (x86 and x64) for Windows ([#1262](https://github.com/lbryio/lbry-app/pull/1262))
 
 
 ### Fixed

electron-builder.json

@@ -65,6 +65,14 @@
     "perMachine": true,
     "createDesktopShortcut": "always"
   },
+  "win": {
+    "target": [
+      {
+        "target": "nsis",
+        "arch": ["x64", "ia32"]
+      }
+    ]
+  },
   "artifactName": "${productName}_${version}.${ext}",
   "beforeBuild": "./build/checkDaemonPlatform.js"
 }