fix env var loading

app/webpack.plugins.ts

@@ -1,4 +1,5 @@
 import type IForkTsCheckerWebpackPlugin from 'fork-ts-checker-webpack-plugin'
+import { DefinePlugin } from 'webpack'
 
 // eslint-disable-next-line @typescript-eslint/no-var-requires
 const ForkTsCheckerWebpackPlugin: typeof IForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin')
@@ -7,4 +8,7 @@ export const plugins = [
   new ForkTsCheckerWebpackPlugin({
     logger: 'webpack-infrastructure',
   }),
+  new DefinePlugin({
+    'process.env.TELEMETRY_WRITE_KEY': JSON.stringify(process.env.TELEMETRY_WRITE_KEY),
+  }),
 ]