Hibariya

I've almost done the basic completion support. Currently, the new editor is totally broken on mobile browsers (especially Chrome on Android) since Monaco editor doesn't support them. So I've left...

I realized I can't edit existing query and have fixed it :sweat_smile:

## The changes to the original PR I have applied changes to the original PR (commit: [3401fad](https://github.com/stripe-samples/accept-a-payment/pull/1277/commits/3401fadd4c9f3c358744857cac6fb2e8503438a4)). Let me explain it. Before applying this change, on an auto-merge workflow run...

Hi @charliegerard-stripe, thanks a lot for the background and feedback! Now I understand that there will be multiple dependencies (the security check and CI) to trigger auto-merge for Dependabot PRs....

@scivola ありがとうございます。 #9 で修正してみたのですが、こんな感じで意図と合ってそうでしょうか? ついでに何度かリトライするようにしてみました。

Let me close this PR for now and re-open another one to remove a couple of irrelevant changes here :pray:

Oops, I misunderstood about #8. This error occurs only on master and the PR fixes it.

haml で日記が書ける! (ということです?)