* Remove `id` and `aria-labelledby` from all SVGs
* Update SVGLint configuration
* Remove `aria-labelledby` from documentation
* Remove `aria-labelledby` from website
because why not
* Add Circle icon SVG
* Add Circle logo details
Color for Circle brand is hard to pin down. They use different colors
for different services (while maintaining the same logo). And their logo
consists of a range of colors due to the two gradients used:
- blues/purplse: `#58BBEA`, `#5DB3E4`, `#699DD4`, `#7D79BA`, `#8669AE`
- greens: `#ABCB37`, `#A9CB38`, `#A0C93B`, `#92C741`, `#7EC449`,
`#65C054`, `#45BB61`, `#20B570`, `#00B07D`
Some other colors sampled from their website:
- `#06b07d` common color for interactive items
- `#4c416e` for the "Invest" header
- `#55bbeb` for the "Pay" header (and some other elements)
- `#aacc38` for the "Trade" header
Finally I settled with the most purple purple of the logos gradients...
