CLI Bug: open browser in CLI block start process

f user default browser is Chrome or Chromium, then cli will use better-opn to open browser, but this command may facing error and not been captured, then it will block the whole start process.

Solution:
add await to betterOpn in order to catch error in betterOpn, otherwise it will be a unhandled promise error.

code/lib/core-server/src/utils/open-in-browser.ts

@@ -25,7 +25,7 @@ export function openInBrowser(address: string) {
       ) {
         // We use betterOpn for Chrome because it is better at handling which chrome tab
         // or window the preview loads in.
-        betterOpn(address);
+        await betterOpn(address);
       } else {
         await open(address, openOptions);
       }