Multi-channel images now correctly normalised, even when uint16#520

timtreis wants to merge 2 commits intomainscverse/spatialdata-plot:mainfrom

bugfix/issue507-render_images-rescaling-issue-with-unit16-datascverse/spatialdata-plot:bugfix/issue507-render_images-rescaling-issue-with-unit16-dataCopy head branch name to clipboard