Update 'next-3.x' with latest changes from 'main'

assigned to @henbug

added 4 commits

• ad8ae35e - fix: improve PayPal popup handling
• 842220a3 - fix: enhance recurring payment display ui
• a1ae7d24 - fix(phpstan): add class existence checks in order processing scripts
• defb002c - Merge branch 'next-2.x' into 'main'

Compare with previous version

mentioned in commit bccf2400

merged