build: import virtual file handling sw in main sw

gulpfile.js

@@ -54,6 +54,7 @@ gulp.task('copyFiles', function() {
 				'src/detached-window.js',
 				'src/icon-48.png',
 				'src/icon-128.png',
+				'src/virtual-file-service-worker.js',
 				'manifest.json'
 			])
 			.pipe(gulp.dest('app')),
@@ -165,7 +166,9 @@ gulp.task('generate-service-worker', function(callback) {
 			stripPrefix: `${rootDir}/`,
 
 			// has to be increased to around 2.8mb for sass.worker.js
-			maximumFileSizeToCacheInBytes: 2900000
+			maximumFileSizeToCacheInBytes: 2900000,
+
+			importScripts: ['virtual-file-service-worker.js']
 		},
 		callback
 	);
@@ -237,5 +240,3 @@ gulp.task('dev-release', function(callback) {
 		}
 	);
 });
-
-// gulp.task('default', ['generate-service-worker']);

src/components/app.jsx

@@ -2,7 +2,7 @@
  */
 
 import { h, Component } from 'preact';
-import '../service-worker-registration';
+// import '../service-worker-registration';
 import { MainHeader } from './MainHeader.jsx';
 import ContentWrap from './ContentWrap.jsx';
 import ContentWrapFiles from './ContentWrapFiles.jsx';