Test getCoinBalance functionality using e2e test framework

[hemz10]

Feature

• [ ] icon-project/icon-bridge-planning#49

Scenario

Test to check for a list of coins, coin balance is displayed when method is called

• Given
  • List of supported coins
• When
  • getCoinBalance is called
• Then
  • Balance should be displayed for list of coins given

[CyrusVorwald]

Please add the associated sprints, estimate, epics, and releases.