cleanup: Use consistent style for ternary operator

cleanup: Use consistent style for ternary operator

We are currently inconsistent whether to put the operators in front
of the corresponding line or at the end of the preceding one. The
most dominant style for now is to put condition and first branch on
the same line, and then align the second branch:

  let foo = condition ? fooValue
                      : notFooValue;

Unfortunately that's a style that eslint doesn't support, so to account
for it, our legacy configuration currently plainly ignores all indentation
in conditionals.

In order to drop that exception and not let messed up indentation slip
through, change all ternary operators to the non-legacy style.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/725