Path issues on Windows

[brunnerh]

The SVG files are not found on Windows, unless a path is specified that is not manipulated by:

svelvg/src/create-library.ts

Lines 80 to 86 in d3f6552

	if (!/^node_modules/.test(libPath)) {
	libPath = path.join("node_modules", glob);
	}
	if (!/\*.svg$/.test(libPath)) {
	libPath = path.join(libPath, "*.svg");
	}

Probably an issue with path.join using \ on Windows.

So when referencing a local directory svgs, these paths do not work ("Converted 0 icons from ..."):

../svgs
..\svgs
../svgs/*.svg
..\svgs\*.svg
node_modules/../svgs
node_modules\..\svgs\*.svg

Only this one does:

node_modules/../svgs/*.svg

[brunnerh]

@metonym The regex fix should be unrelated to this, that was just something I noticed while looking at the code.