Feature request: Jump to the last element of a long array

When viewing a very large JSON array, it is difficult/impossible to navigate to the very last element using the arrow keys because the list can contain millions of elements.

It would be very useful to have a way to jump directly to the last element or a closing bracket, e.g. like in vim with shift+%, or some dedicated command.

Similarly, a "go to array index" command (e.g. Ctrl+G → 500000) would be extremely useful for large arrays.

Thanks for the great project!