get rid of msw, use fetch mock instead

build/msw_plugin.js

@@ -1,28 +0,0 @@
-import { readFile } from 'node:fs/promises'
-import { resolve } from 'node:path'
-
-const target = 'node_modules/msw/lib/mockServiceWorker.js'
-
-const mswPlugin = () => {
-  let projectRoot
-  return {
-    name: 'msw-plugin',
-    apply: 'serve',
-    configResolved(conf) {
-      projectRoot = conf.root
-    },
-    configureServer(server) {
-      server.middlewares.use(async (req, res, next) => {
-        if (req.path === '/mockServiceWorker.js') {
-          const file = await readFile(resolve(projectRoot, target))
-          res.set('Content-Type', 'text/javascript')
-          res.send(file)
-        } else {
-          next()
-        }
-      })
-    },
-  }
-}
-
-export default mswPlugin