Maybe allow index acces to list literals/comprehensions

[PeterJCLaw]

Possibly related to #36, though seemingly separate given the different message, I think there's a bug where a (correctly) wrapped list literal or comprehension causes a (correctly not wrapped) index access to be flagged.

x = [
    'a',
][0]  # JS101 on col 4 of this line

I realise this is a slightly odd pattern, though it seems to fit within the rules this plugin is trying to enforce.

[jsfehler]

Off the top of my head, JS101 is getting triggered because the plugin assumes an uneven number of opening and closing characters equals a multiline container.

[jsfehler]

This is tricky to fix. The current check isn't smart enough to know that an opening square bracket after a closing bracket means an index check.