Bug 12111: (follow-up) fix breadcrumbs wording for vendor note

Bug 12111: (follow-up) fix breadcrumbs wording for vendor note

As asked by QAer,
this followup fixes wording in modordernotes.tt for vendor note
(Change order vendor note vendor note => Change order vendor note)
It also uses [%- and -%] to make code more readable

Test plan :
try to edit a vendor note, check the wording is correct in breadcrumbs

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described, should be nicely translatable now.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>