Headless token refresh

[KalleStruik]

Use reddit_session cookie to refresh the accessToken on headless bots. Currently still testing.
This PR changes the bot.js script to take a semicolon (;) separated list of cookies instead of a comma (,) separated list of accessTokens. The env variable is also changed from ACCESS_TOKEN to REDDIT_SESSION to reflect this

How to get reddit_session cookie

1. Go to r/place
2. Open dev tools and go to the network tab
3. Refresh the page
4. Click on the first request to reddit.com/r/place (See image)
   
5. Go to the tab called Cookies
6. Copy the value of the reddit_session cookie

[FloGo3308]

dit is erg hard nodig!!!

[SpiderDead]

Dit lijkt bij mij te werken. Zit zelf nog te wachten op een token refresh of dat goed werkt.

[nuc1e4r5n4k3]

Do we know whether the reddit session cookie can change? If so, we should capture the Set-Cookie header of the response and update redditSessionCookies with it.

[KalleStruik]

Do we know whether the reddit session cookie can change? If so, we should capture the Set-Cookie header of the response and update redditSessionCookies with it.

I am pretty sure it is static (or at least valid for a long time), but I don't think it hurts to just do this anyway.

[KalleStruik]

Token refresh just happened on my end btw and it seems to still be placing pixels after it.

[ArjenHolmer]

Initial token request works on my end as well, waiting for the refresh now. so far so good!

[KalleStruik]

Do we know whether the reddit session cookie can change? If so, we should capture the Set-Cookie header of the response and update redditSessionCookies with it.

Seems like this won't be easy to do after all, since the response to our request to /r/place does not return a set-cookie header for this cookie.

[SpiderDead]

Refreshing works. Just auto refreshed 2 clients and placed a tile.