Allow tagging, pushing, and pulling images

Is your feature request related to a problem? Please describe. It would be good if we could tag, push, and pull images from the images panel.

Describe the solution you'd like

• In the images panel when you press 't' it should bring up an input prompt for you to enter a tag and then upon pressing enter it should tag the selected image with that tag.
• When you press 'p' it should bring up a prompt to enter an and tag in the form "image:tag" to pull
• When you press 'P' it should push the current image, with a confirmation asking if you're sure you want to

Describe alternatives you've considered The pull feature would benefit from actually trying to search dockerhub, but we can leave that for another PR.

Additional context the 'p', 'P' thing will be familiar for people who use lazygit