[postcss-purgecss] Typescript definition exported as `any`

[latipun7]

When reporting a bug, please try to include the following:

• A descriptive title
• An isolated way to reproduce the behavior (example: GitHub repository with code isolated to the issue that anyone can clone to observe the problem)
• What package and version you're using, and the platform(s) you're running it on
• The behavior you expect to see, and the actual behavior

Packages Detail

• @fullhuman/postcss-purgecss@3.1.3
• typescript@4.1.3
• vscode@1.52.1

Expect

import purgeCss from '@fullhuman/postcss-purgecss`;

the imported purgeCss has the correct typings

Actual Behavior

read as any, no typings / intellisense