[BUGFIX] Ensure complete image is shown in image manipulation editor

In viewports with a resolution of less than 1000px, portrait format
images are not fully visible in the image manipulation editor.
This adjustment ensures that the complete image is visible.

Resolves: #99199
Releases: main, 11.5
Change-Id: I4e2d961b889ceb1b2e7ec8e26f53f0c42adf33b1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77994


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>