Payment gateway integration, Item description, Inventory minimized UI and more

Release note for 26-09-2024(Thursday)
1.Payment Gateway integration
2.Mart settings changes
a.Mart Type is now Mart category
b.Visibility is now Mart type
c.Public is now Online store
d.Private is now POS
e.On-click "+ order", if FynOne plan is free, error as "POS is disabled in free plan. Upgrade to Basic plan or higher on FynOne"
3.Inventory UI changes (minimized UI) and new section "Item description" which is shown in Mart