Synced _settings.scss to match 5.3.2 update in parent theme.

See Commit 010b5046285 in FoundationPress master branch.
Update Gruntfile.js
Update header.php

Foundation 5.3.x and higher need this change for offcanvas
Merge pull request #7 from firelite/update-5.3.2

Synced _settings.scss to match 5.3.2 update in parent theme.
Merge pull request #9 from smeyer/patch-1

Update Gruntfile.js
Merge pull request #13 from thestillwind/patch-1

Update header.php to remove extraneous `.row
changing jquery location for wp_enqueue_script-- although considering not deregistering wordpress jquery for future versions. Seems its not good practice.