icons src output path

[gormonn]

"webpack-pwa-manifest": "^4.3.0",

I have a similar problem as #23

As a result of the build, the manifest and the icons are on the same level in the directory:
-- build
---- manifest.json
---- icon.png

In this case, the paths to the icons are absolute:
"src": "build/icon.png"

Although they should be relative:
"src": "icon.png"

As a workaround - I can write a post processor. But it's totally annoying.