Drop dependencies

[brunolemos]

I see you added react-spring as a dependency, but that's usually an app dependency, not a library dependency. Maybe the library should be dependency free?

You can see react-spring is making the bundle ~15x bigger:
https://bundlephobia.com/result?p=react-image-enlarger@1.0.2

[bmcmahen]

Yeah, I'm never really sure if react-spring should be considered a peer dependency or not. It's required either way... and this sort of lib is really difficult to build if you're not using some sort of spring-based animation. Can you explain the benefits of making it a peer dependency instead?