Scaling for different screens sizes

Scaling for different screen sizes
--the game now sizes to the screen it is being displayed on for the home and map pages

Developer Tool - adding a city marker
--working on the page for us developers to easily find the location a city marker should be placed so we can add it to the array of cities
--this is a separate page that we will remove once we are ready to send the game to the server team at the end of the project.  for now it just shows the use the mouse's x and y coordinates on the page so that they can easily know what location to add a marker for a new city being added to the game