fix: prefer `globalThis` over `window` in Node 19

[metonym]

Fixes #34

This is a hotfix that allows pagecrypt usage with Node 19.

For some reason, the window/globalThis check is evaluated differently in Node 19.

Setting globalThis before window avoids the reference error thrown by Node when the branch is evaluated.

I've tested this in Node 19 and Node 16.

[Greenheart]

Thank you so much for the rapid fix! 💚

I'll test this with Node 16, 18 and 19, and then we can likely have a new npm release out soon.

---

Findings so far:

• The library seems to work fine with Node 19.
• One issue is that the decrypt template is rendering in a weird way when loading the encrypted page. Seems like one of the SVGs is off, and might need styling in a way that doesn't cause the rendering glitch. This is unrelated to this PR but will need to be fixed before we can make a new release.
• While we're at it, it would be good to update dependencies too.

Until this is done, I'd recommend you and others to use Node 18 if possible, which seems to work fine.

[Greenheart]

Nice work! Thanks again for the quick fix :smile: This works well for all environments. with node 16, 18 and 19.

I'm merging this, but will fix the other tasks in separate PRs before making a new release since something has changed with how the styling is loaded in the latest versions.

If you want to use the new version directly, feel free to swap the npm install with linking to the GitHub repository and a specific commit: https://stackoverflow.com/a/17509764/4183985

[metonym]

Thank you for addressing this so quickly.

[Greenheart]

For sure, whenever there's an opportunity!

Welcome to help make further improvements if you have more ideas! 😄