style: Fix indentation errors

While we have some style inconsistencies - mostly regarding split lines,
i.e. aligning to the first arguments vs. a four-space indent - there are
a couple of places where the spacing is simply wrong. Fix those.

Spotted by eslint.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/608

js/ui/components/keyring.js

@@ -162,7 +162,7 @@ class KeyringDialog extends ModalDialog.ModalDialog {
         // NOTE: ModalDialog.open() is safe to call if the dialog is
         // already open - it just returns true without side-effects
         if (this.open())
-          return true;
+            return true;
 
         // The above fail if e.g. unable to get input grab
         //