Issue #3280279 by AleexGreen, Wim Leers, sandeepraib, kim.pepper, smustgrave,...

Issue #3280279 by AleexGreen, Wim Leers, sandeepraib, kim.pepper, smustgrave, alexpott, quietone, pradhumanjain2311, bruno.bicudo, longwave, claudiu.cristea, larowlan: Allow sites to programmatically opt in to accept more image type uploads in CKEditor 5: TIFF, SVG…

(cherry picked from commit 8f95f51a)