Fix #3785 — Ignore errors in parsing SVG files for shrinking them, copy original file to output instead

[Kwpolska]

We already have this fallback for any errors for raster images. This fixes #3785.

[Kwpolska]

@Xaldew, could you test this fix?

[Xaldew]

@Kwpolska

Apologies for the slow response! But yes, I can confirm that this works:

xaldew@ShadowX:~/git/homepage/nikola_blog$ make
nikola build
Scanning posts............done!
.  scale_images:output/images/compression-teaser.opt.svg
[2024-09-05 10:31:10] WARNING: scale_images: Can't process images/compression-teaser.opt.svg, using original image! (Memory allocation failed : Huge input lookup, line 42, column 10000034 (<string>, line 42))
[2024-09-05 10:31:10] WARNING: scale_images: Can't process images/compression-teaser.opt.svg, using original image! (Memory allocation failed : Huge input lookup, line 42, column 10000034 (<string>, line 42))

Perhaps a bit wierd that it writes the error message twice, but that's hardly a real issue.

Thanks a lot!