fix: create same hashes on server and client

we saw a behaviour with dynamic imports for SSR, when the import
was directly referenced, e.g. with `import(./foo')` instead of
`import('./')` webpack would with create different filehashes in
the moduleMap when the option `usedExports` is enabled.

filenames before hashing in webpack with `usedExports` followed the
pattern: `filename.js|abc`

filenames without `usedExports` are simply the filename: `filename.js`

they are then hashed in webpacks `HashedModuleIdsPlugin.js` with
different results, leading to an incomplete modulesMap

Co-authored-by: Jonas Holland <jonas.holland@new-work.se>

packages/webpack/lib/configs/build.js

@@ -143,7 +143,7 @@ module.exports = function getConfig(config, name, buildDependencies) {
         }),
       ],
       chunkIds: 'natural',
-      usedExports: true,
+      usedExports: false,
       concatenateModules: true,
     },
     plugins: [

packages/webpack/lib/configs/node.js

@@ -156,6 +156,7 @@ module.exports = function getConfig(config, name, buildDependencies) {
     optimization: {
       minimizer: [],
       chunkIds: 'natural',
+      usedExports: false,
     },
     plugins: [
       new LimitChunkCountPlugin({ maxChunks: 1 }),