feat(postcss): add missing extensions (#2803)
feat(postcss): add missing extensions (#2803)

The list of supported filenames can be found on
https://github.com/postcss/postcss-load-config/blob/d1478640e823b5432b7dc43a0ba6e23c58b7b981/src/index.js#L77-L86
JimiC/vscode-icons,robertohuertasm/vscode-icons,vscode-icons/vscode-icons,vscode-icons/vscode-icons,JimiC/vscode-icons