[Issue] Dragged models don't appear in windows application name

[AlexMCool]

When you drag and drop a model into Blockbench, the title of the model doesn't appear in the application name. When you press ctrl+s to save the model, you also need to select a place to save the folder to

[JannisX11]

This is because dropping a file into the gui adds it to the current project rather than opening it as a new project. Fixed in 1.4.2