UI Issues

[StuartFerguson]

• On loadup if no merchants or contracts are setup error is displayed
• When creating a merchant if the RM has not caught up error displayed when showing the merchant
• Screen to assign operators to merchant
• Screen to add devices to merchant
• Merchant History needs better filtering
• Merchant Balance to refresh
• Transactions By Day showing the wrong dates in graph
  (Date Range 25/03/21 -> 23/04/21)
  graph showing data as 25/04 -> 08/05

[StuartFerguson]

Added to project