Remove `watchOptions` prop

[WofWca]

And just always watch options instead.

1. The API is unintuitive, and unnecessary. Users can just create a non-reactive options object by themselves.
2. This prop also almost doubles the size of the package (if we don't count perfect-scrollbar itself

[mercs600]

Hi, thank you for proposition. I'm wondering what gives you reactive options when you have to reinitialize perfect scrollbar instance again ? PS instance is not reactive itself, so I have to destroy and create new one. What do you think ?

[WofWca]

I'm wondering what gives you reactive options when you have to reinitialize perfect scrollbar instance again ?

Sorry, could you rephrase?

[mercs600]

Ok never mind, I did not understand you the first time -) So you want it to watch options by default ?

[WofWca]

Yes.

[mercs600]

I will take into account, because it will be breaking change