add feature: "Save .npy" button when pressed opens up a file explorer gui (file-picker) that lets user choose where to save & choose what filename to use.
note: User should not be able to change the file extension .npy however. if user enters a filename with a . ensure the final saved file still would contain the .npy extension.
Supplementary feature: keep track of a user's history of saved boards
add feature: "Save .npy" button when pressed opens up a file explorer gui (file-picker) that lets user choose where to save & choose what filename to use.
note: User should not be able to change the file extension
.npyhowever. if user enters a filename with a.ensure the final saved file still would contain the .npy extension.Supplementary feature: keep track of a user's history of saved boards