Tweak port and sourcemaps config

ui/package.json

@@ -10,7 +10,7 @@
   },
   "scripts": {
     "start": "node parcel.js",
-    "build": "parcel build -d build --public-url '' src/index.html",
+    "build": "parcel build -d build --no-source-maps --public-url '' src/index.html",
     "clean": "rm -rf ./build && rm -rf ./.cache",
     "test": "jest",
     "test:watch": "jest --watch",

ui/parcel.js

@@ -2,7 +2,7 @@ const proxy = require('http-proxy-middleware')
 const Bundler = require('parcel')
 const express = require('express')
 
-const port = Number(process.env.PORT || 1234)
+const port = Number(process.env.PORT || 8080)
 
 console.log(`Serving on http://localhost:${port}`) // eslint-disable-line no-console