Added new Revenue Per Month Widget to Dashboard

Today we have added a new Dashboard widget -"Revenue Per Month". This will give a visual representation of your bookings over the past 6 months.

We will work towards having this widget more customisable along with having this included in the custom dashboard screens too.

Along with this, we removed the scale text from the Occupancy Rate and Bookings Per Channel Widgets on the Dashboard too to make it cleaner and easier to use.