### Tasks
- [x] use color palette tokens and functions within the scope of the `EuiProvider`
- [x] replace `tintOrShade()` color calculation function with a semantic token
- [x] replace `euiThemeVars` from `@kbn/ui-theme` with `useEuiTheme` from `@elastic/eui`
- [x] change all cases of `props.theme.eui.*` to `euiTheme.*`
- [x] extend `emotion.d.ts` file in the `tsconfig.json`
- [x] replace `euiStyled` with `css` from `@emotion/react`
- [x] migrate Sass to `@emotion/react`
- [x] (if applicable) replace all `success` tokens with `accentSecondary`
- [ ] (optional) replace `transparentize()` color calculation function with a semantic token
- [ ] (optional) replace all custom colors with semantic tokens (or at least appropriate color palette values)
- [ ] (optional) replace incorrectly used vis color palette with other color tokens
- [ ] (optional) replace all "health" SVGs with an appropriate component / update the colors of the SVG