Download network including legend, misc fixes

[vincerubinetti]

• replace react-to-text with more maintained react-children-utilities
• add dom-to-image-more package for "screenshotting" DOM elements
• refactor network code a bit for readability
• have download feature include the legend, instead of just the network canvas. this sacrifices having transparency in downloaded PNGs, but hopefully that is an okay sacrifice. the network does react to dark mode changes, so you can make figures for dark slide backgrounds for example.
• refactor download util funcs to separate downloading and url-ifying functionality

[netlify]

✅ Deploy Preview for molevolvr ready!

Name	Link
🔨 Latest commit	b00dd87
🔍 Latest deploy log	https://app.netlify.com/sites/molevolvr/deploys/6737a76c46e35c00089f0eb7
😎 Deploy Preview	https://deploy-preview-43--molevolvr.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[falquaddoomi]

Nice, seems like a lot of good simplifying changes. I think not having a transparent background for the PNG export is fine, personally, especially since as you said you can get it in dark and light versions.