Update to Electron 25 (nativefier#1559)

This is intended to get Electron updated to 25. There are no known bugs
in this release.

As well this includes a fix for an existing bug I noticed where child
windows in Windows received a menu bar when they should not have.

.github/workflows/publish.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1 # Setup .npmrc file to publish to npm
+      - uses: actions/setup-node@v2 # Setup .npmrc file to publish to npm
         with:
           node-version: '20' # Align the version of Node here with ci.yml.
           registry-url: 'https://registry.npmjs.org'
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1 # Setup .npmrc file to publish to npm
+      - uses: actions/setup-node@v2 # Setup .npmrc file to publish to npm
         with:
           node-version: '20' # Align the version of Node here with ci.yml.
           registry-url: 'https://registry.npmjs.org'

.gitignore

@@ -44,7 +44,6 @@ build/Release
 # Dependency directory
 # https://docs.npmjs.com/misc/faq#should-i-check-my-node-modules-folder-into-git
 node_modules
-.nvmrc
 
 # Python virtual environment in case it's created for the Castlabs code signing tool
 venv

.nvmrc

@@ -0,0 +1 @@
+16