Thanks to a great pull request from @hkva we have a very nifty feature of supporting copying an image in its current rotation, cropping, editing etc to clipboard with ctrl+c, which allows you to easily paste it in chat etc for quick edits without having to save.
Also I added mouse navigation with forward and backward buttons to flip thorugh images in a folder.

https://github.com/Wassimulator/CactusViewer/releases/tag/v2.1.4