chore(webpack): Add npm run serve command

Signed-off-by: Julius Härtl <jus@bitgrid.net>

webpack.js

@@ -3,6 +3,7 @@ const path = require('path')
 
 const buildMode = process.env.NODE_ENV
 const isDev = buildMode === 'development'
+const isDevServer = process.env.WEBPACK_DEV_SERVER;
 
 webpackConfig.entry = {
 	...webpackConfig.entry,
@@ -13,14 +14,17 @@ webpackConfig.entry = {
 	reference: path.join(__dirname, 'src', 'init-reference.js'),
 }
 
-webpackConfig.stats = {
-	context: path.resolve(__dirname, 'src'),
-	assets: true,
-	entrypoints: true,
-	chunks: true,
-	modules: true,
+if (isDevServer) {
+	webpackConfig.output.publicPath = 'http://127.0.0.1:3000/'
+} else {
+	webpackConfig.stats = {
+		context: path.resolve(__dirname, 'src'),
+		assets: true,
+		entrypoints: true,
+		chunks: true,
+		modules: true,
+	}
 }
-
 // Workaround for https://github.com/nextcloud/webpack-vue-config/pull/432 causing problems with nextcloud-vue-collections
 webpackConfig.resolve.alias = {}