Update reviews dialog look
Follow-up from #2423 (closed), change the reviews dialog to be like in the mockup: https://gitlab.gnome.org/Teams/Design/software-mockups/-/blob/master/review-dialog.png
Follow-up from #2423 (closed), change the reviews dialog to be like in the mockup: https://gitlab.gnome.org/Teams/Design/software-mockups/-/blob/master/review-dialog.png