Image previewer context menu applies to current image when right-clicking other images

[Callistemon]

Another small error was discovered while previewing similar images. When one image is currently displayed in the large space and is highlighted on the right sidebar of the image preview window, right-clicking a different image in the sidebar provides a context menu that actually applies to the current image, not the image being right-clicked. Right-clicking a different image and opening it reveals the filename does not match, and instead matches the current image.

[DigitalVolcano]

Thanks for the report - fixed this.

[Callistemon]

Also, the left and right arrows above the right sidebar of the image preview to not deactivate when the groups reach the end.