Update `SVGGraphics` to account for globally cached images (PR 11912 follow-up)
Update `SVGGraphics` to account for globally cached images (PR 11912 follow-up)

Since there's (essentially) no tests for the SVG-backend, these changes didn't make in into PR 11912 when the code in the `src/display/canvas.js` file was modified.

mozilla/pdf.js,macroplant/pdf.js,showpad/mozilla-pdf.js,nawawi/pdf.js,mozilla/pdf.js,timvandermeij/pdf.js,xavier114fch/pdf.js,xavier114fch/pdf.js,showpad/mozilla-pdf.js,Shoobx/pdf.js,timvandermeij/pdf.js,Snuffleupagus/pdf.js,Snuffleupagus/pdf.js,nawawi/pdf.js,Shoobx/pdf.js,timvandermeij/pdf.js,Snuffleupagus/pdf.js,macroplant/pdf.js,caremerge/pdf.js,caremerge/pdf.js,Shoobx/pdf.js,nawawi/pdf.js,showpad/mozilla-pdf.js,mozilla/pdf.js,macroplant/pdf.js