Refactor electron launcher

Don't try auto-update on portable builds

src/development.ts

@@ -0,0 +1,22 @@
+import axios from 'axios'
+
+export async function waitForDevServer() {
+  let response
+
+  while (!response) {
+    try {
+      response = await axios.get('http://localhost:8080')
+    } catch {
+      console.log('Waiting for dev server')
+      await new Promise(resolve => setTimeout(resolve, 1000))
+    }
+  }
+}
+
+export function isDev() {
+  return Boolean(process.argv.find(arg => arg === '--development'))
+}
+
+export function runningUiTestOnCi() {
+  return Boolean(process.argv.find(arg => arg === '--runningUiTestOnCi'))
+}