🥰 [FEATURE] Bundle `fmin` instead of referencing as dependency

### 🥰 Features description [Please make everyone to understand it]
Consider bundling `fmin` into this package or publishing a fork instead of referencing as dependency.

### 🏞 What problem does this feature solve
[fmin](https://www.npmjs.com/package/fmin) is an unmaintained package and hasn't published in 5 years. It has a bunch of unintended non-dev dependencies like `uglify-js@^2.6.2`, `rollup@^0.25.8`. Though they were moved on git, the updated version never got published.

### 🧐 What does the proposed API look like
No API related

### 🚑 Any additional [like screenshots]
None