Squashed 'includes/libraries/aihrus-framework/' changes from 3a2eca2..0419ad1

0419ad1 Add `slash_sanitize_title` verification helper
b6e06c2 RESOLVE michael-cannon/testimonials-widget#48

git-subtree-dir: includes/libraries/aihrus-framework
git-subtree-split: 0419ad1de681ff73b006a5cfca63a6c416fd1fe3
Update aihrus framework