Bug fix

• Prevent XSS injection via VueJS (#4747) credit to @cupc4k3. @NicolasDorier
• Do not through missing-permission error when no store on /api/v1/stores (Close #4735) (#4748) @NicolasDorier

Improvements

• UI: Decrease content padding top on small screens (#4749) @dennisreimann
• Checkout v2: Minor UI updates (#4734) @dennisreimann