Sharp logging `value "0" of type 'gint'`

[HKGx]

Sharp is logging

(sharp:24296): GLib-GObject-WARNING **: 23:51:19.397: value "0" of type 'gint' is invalid or out of range for property 'width' of type 'gint'  

when we're passing an "empty" SVG.
It's technically a followup to #1

[HKGx]

Those are the faulty lines

rendertex/src/index.ts

Line 86 in 4b5a8b7

const sharp = await svgToSharp(svg, req.query);

rendertex/src/index.ts

Line 87 in 4b5a8b7

const resized = pngResize(sharp, req.query);

rendertex/src/index.ts

Line 88 in 4b5a8b7

const buffer = await resized.png().toBuffer();