Rethink the Android Studio setup page

[qwertychouskie]

• Why does it have the user install a different copy of Java? Android Studio ships a copy of Java.
• Having the user download the ZIP of the SDK is a massive footgun; people always end up opening the outer FtcRobotController folder instead of the inner FtcRobotController folder inside the outer one, resulting in Android Studio getting very confused, and thus the user as well.

I'm definitely biased, but now that my overhaul of https://gm0.org/en/latest/docs/software/getting-started/using-android-studio.html has been merged, I would suggest just linking users to it.

[j5155]

I personally would support a PR that adds this, as long as it doesn't break historical links