Bump electron from 7.2.4 to 9.4.0

Bumps [electron](https://github.com/electron/electron) from 7.2.4 to 9.4.0.
- [Release notes](https://github.com/electron/electron/releases)
- [Changelog](https://github.com/electron/electron/blob/master/docs/breaking-changes.md)
- [Commits](electron/electron@v7.2.4...v9.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -33,7 +33,7 @@
     "zipcodes": "^8.0.0"
   },
   "devDependencies": {
-    "electron": "^7.2.4",
+    "electron": "^9.4.0",
     "electron-builder": "^19.49.0",
     "autoprefixer": "7.1.6",
     "babel-core": "6.26.0",

package.json

@@ -2432,9 +2432,9 @@ electron-updater@^2.18.2:
     semver "^5.4.1"
     source-map-support "^0.5.0"
 
-electron@^7.2.4:
-  version "7.2.4"
-  resolved "https://registry.yarnpkg.com/electron/-/electron-7.2.4.tgz#9fc0446dae23ead897af8742470cb18da55c6ce9"
+electron@^9.4.0:
+  version "9.4.0"
+  resolved "https://registry.yarnpkg.com/electron/-/electron-9.4.0.tgz#c3c607e3598226ddbaaff8babcdffa8bb2210936"
   dependencies:
     "@electron/get" "^1.0.1"
     "@types/node" "^12.0.12"