Apply HTML escape in preview and run mode to string values

[bargioni]

Commands containing text surrounded by "<" and ">", like
Q100999239 P396 "LIGV050594" P1810 "Campos-Serrano, Alicia "
are correctly executed (see https://www.wikidata.org/w/index.php?title=Q100999239&diff=2480949189&oldid=2479274321)
but they are incorrectly shown as
Q100999239 P396 "LIGV050594" P1810 "Campos-Serrano, Alicia"
in preview and run mode.

[arcstur]

Oops that actually can be dangerous... Thanks for reporting @bargioni