* Update/Modernize Chai, NPM, Fetch
* Test readme size
* Remove dev check
* Fix file sizes
Mostly fixing readme to match files, but sometimes removing newlines to match readme
* Test improvements
* Fix Samsung Swoop size
* Shrink amazon_s3.svg by 118 bytes
Path & whitespace optimization by [SVG Cleaner](https://github.com/RazrFalcon/svgcleaner-gui), then [SVGMO](https://jakearchibald.github.io/svgomg/).
_N.B.: Notice the conversion of many `M`→ `m`. IDK why, but I got rendering errors on multiple viewers with the uppercase versions, & the optimizers lowercased them, anyway._
* Update README.md
Update decreased size for amazon_s3.svg
* All files follow the template
* Removed trailing whitespace from end of lines
* Removed newline at end of file
* `xlink` used for maximum compatibility
* Bit of newline trimming
