Quality of Life feature requests focused on previewing generated results

[munsonbh]

As a user, I want to be able to "page" between the generated results while keeping the preview pane open so that I can quickly compare similar images.

(As an example, in the MacOS finder you can press spacebar when a file is selected to see a preview. Using the arrow keys navigates through the other finder window items without closing the preview pane.)

As a user, I want a new preview pane to maintain the same scale and position as the last time the preview pane was closed.

As a user, I want to be able to open an image's Actions button and be able to select "Show in Finder" so that I can more quickly open the file in another graphic program.