Add run configuration for format

[takahirom]

Idea Description You can refer to this. It may be a little convenient to run the format in Android Studio.

Reference images and links https://github.com/android/nowinandroid/blob/main/.run/spotlessApply.run.xml

[atsuto-yamashita]

I'd like to try this. 🙋

[momomomo111]

@atsuto-yamashita Thanks! Assigned!

[atsuto-yamashita]

@takahirom @momomomo111 Please let me confirm one thing. 🙏

Spotless has been removed, right? https://github.com/DroidKaigi/conference-app-2023/pull/851

Is my understanding correct that spotless will be reintroduced?