[FEATURE] - Button (List) to select output Image format

[VerzatileDev]

Is your feature request related to a problem? Please describe.

The following aim is to let the user define what format they want the image output to be set as.
As it might not seem useful for them to have a .bmp format.

Describe the solution you'd like

Create a list that can be opened, and the user can select from available formats that the output is and will be written as

Describe alternatives you've considered

Alternatively we can change the format of the initial image and the output will just be of that.