Adds support for Next.JS and Gatsby

[aleccool213]

• Simply adds a flag to not run the code when window is not defined
• This is a crude, simple solution that is not elegant
  • Likely a better solution to this
• This is just to get it working for my personal blog which uses GatsbyJS
• I have not tested with Next.JS

[sandoche]

Have you tried to replace window with this ?
It should work according to @frencojobs #15 (comment)

[aleccool213]

@sandoche No, I read that and wasn't convinced that is the correct solution. Do you have any insight into why that would be better? IS_BROWSER is very clear to the reader.

[sandoche]

Why did you change the linting rules ?

[aleccool213]

@sandoche Sorry about that! I accidentally committed it. I pushed up my changes without the eslint changes.

[adithwip]

Been waiting for this PR to merge 😅

[sandoche]

Yes sorry I didn't have the time yet.
I will check this out this weekend!

[sandoche]

@adithwip Branch finally merged!
@aleccool213 THanks for this amazing fix!

[adithwip]

Amazing!
Thanks for the fix @aleccool213
And thanks for this marvelous project @sandoche