add sass classes I currently have to display button
TODO: refactor to mixins, accessibility, dark mode, rtl

Add base styles and theme mixins

fix wrong class names and add dependencies to package.json

update my local linter to match project's linter

put sass mixins and classes into files based on go/material-sass-style

remove 'mdc' from file names and fix references

add feature-targeting to control css to emit

fix lint style test and remove feature-targeting-mixins reference to fix build

move sass into different mixins with no change to functionality

put theme mixins into their own file with variables per new SASS style guide

make tests pass

allow for client use of the sass themes

move mixins locations and refactor to avoid pointless modularity

add default $query argument value and pass $query argument instead of
feature-target

base mixins are not theme mixins

replace button mixins with copied segment-theme mixins

fix lint and dependency tests

use new API due to custom alpha values

remove button dependency, fix lint errors, correct bad variable
references

visible is not a property of border-right

make mixins accept only primitives as input

add mixins for client to use theming without referencing css classes

use unique css properties for different mixins

use new theme/color mixin and clean up use of feature-targeting mixins,
and remove ability to have different selected vs unselected outline
colors

add comments for SassDoc, and change " to ' in imports

update to reflect change in file name