Add auth && vary region

[SoyZhou]

Enable Auth

1. No auth

No addition environment variables required.

2. Code

   NEXT_PUBLIC_AUTH_PROVIDER=code
   NEXT_PUBLIC_AUTH_CODE=123456

   Input auth code to launch app

   

3. Netlify

   export NEXT_PUBLIC_AUTH_PROVIDER=netlify

   Need open netlify identity on netlify.

Enable Vary Region

1. Local setting

   
   # for macOS
   export PUPPETEER_CHROME_BIN="/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"

for windows (Depends on your installation path)

export PUPPETEER_CHROME_BIN="C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"

2. Docker

Add the follow content into `Dockerfile`, and rebuild docker image:
```Dockerfile
RUN apk add -q --update --no-cache \
      chromium \
      nss \
      freetype \
      freetype-dev \
      harfbuzz \
      ca-certificates \
      ttf-freefont

ENV PUPPETEER_CHROME_BIN="/usr/bin/chromium-browser"
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD="true"

3. Netlify

Since the function has a 10s limit, it can't be called successfully.

[netlify[bot]]

👷 Deploy request for midjourneyui pending review.

Visit the deploys page to approve it

Name	Link
🔨 Latest commit	d1cc0bd4942403b4b9ce84a6880ae0f8fa1c90aa

[vercel[bot]]

@SoyZhou is attempting to deploy a commit to the erictik Team on Vercel.

A member of the Team first needs to authorize it.