Add option to disable left-click functionality

[Ranimara]

I think it would be really helpful to have the option to disable the left-click functionality that the module adds. Currently, if you left-click on an image, it pops it open in a window as well as displays it on the canvas. I like that right-click has been added as an additional way to display it on the canvas.

I'm someone who is prone to mis-clicking, or sometimes just wants to pop out an image instead of place it on the canvas. So having the ability to disable the "left-click to display on canvas", would be very helpful. Especially since foundry's default left-click has it pop out the image.