Don't mutate displayOrder if we can't find the page we're trying to change. r=jsantell
Don't mutate displayOrder if we can't find the page we're trying to change. r=jsantell

Signed-off-by: Richard Newman <c8f4dc3b2a000e5f4b07e416774ad99513089206@twinql.com>

jsantell/tofino,victorporof/tofino,bgrins/tofino,mozilla/tofino,jsantell/tofino,jsantell/tofino,victorporof/tofino,bgrins/tofino,mozilla/tofino,bgrins/tofino,mozilla/tofino,bgrins/tofino,mozilla/tofino,jsantell/tofino