It's A Trap v3.10 (#951)

* Reworked IaT menu. Fixed some minor issues.

* Condensed 5E theme properties for trap saving throws.

* Added 5E Generic theme v3.10

* Updated documentation for It's a Trap and 5E Generic theme.

* Updated docs in script.json.

Co-authored-by: Cazra <stephen.lindberg@rkcybersolutions.com>