upload current opened sketch

[ZiTAL]

Choosing a sketch to upload is annoying, it's neccesary to write the entire path, why not upload the current opened sketch? Or autocomplete the input of Sketch file

Thank you

[Jackbennett]

What if this used the the current file instead of writing an error and returning?

https://github.com/microsoft/vscode-arduino/blob/master/src/arduino/arduino.ts#L104

Related to #271, #382 #807, #549 and probably more.

if so, it looks like I could set arduino.json "sketch": null to use all my current .ino file directly at a project level.

This would make beginners using VSCode way more pleasant.