Improve fabric.IToSVGOptions dimensions types (#45447)
Improve fabric.IToSVGOptions dimensions types (#45447)

* Improve fabric.IToSVGOptions dimensions types

* Format code with local prettier conf
georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,dsebastien/DefinitelyTyped,dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,mcliment/DefinitelyTyped