Update NWjs to 0.66.1 and Node to 16.16.0

Author: haslinghuis

.nvmrc

@@ -1 +1 @@
-16.15.0
+16.16.0

gulpfile.js

@@ -50,7 +50,7 @@ const NODE_ENV = process.env.NODE_ENV || 'production';
 const NAME_REGEX = /-/g;
 
 const nwBuilderOptions = {
-    version: '0.62.0',
+    version: '0.66.1',
     files: `${DIST_DIR}**/*`,
     macIcns: './src/images/bf_icon.icns',
     macPlist: { 'CFBundleDisplayName': 'Betaflight Configurator'},