Add forge.config.js

Adjust makers to package for different platforms

forge.config.js

@@ -0,0 +1,22 @@
+module.exports = {
+  packagerConfig: {},
+  rebuildConfig: {},
+  makers: [
+    {
+      name: '@electron-forge/maker-squirrel',
+      config: {},
+    },
+    {
+      name: '@electron-forge/maker-zip',
+      platforms: ['darwin'],
+    },
+    {
+      name: '@electron-forge/maker-deb',
+      config: {},
+    },
+    {
+      name: '@electron-forge/maker-rpm',
+      config: {},
+    },
+  ],
+};