Add command for aborting current script execution

I ran some script with F8 - there was an infinite loop with no output. I saw no indication anything was running (the OUTPUT window didn't pop up), but I couldn't run anything else with F8.

There should be some indication that a selection is running, and there should be a way to stop it.

Also, if I do add some output to the loop, e.g.

while($true){1}

I can' t seem to kill VSCode, clicking on the X doesn't close it, I need to kill the process some other way.

まず、VS Code拡張機能でのF8による選択範囲の実行経路と、OUTPUTウィンドウがどのように開かれたり更新されたりするかを追跡します。while($true){1}で無限ループを再現します。選択範囲が実行中であることを示す表示が現れ、VS Codeを終了せずにコマンドで実行を停止できれば完了です。