[EuiProvider][EuiThemeProvider] `highContrastMode` set up and documentation#8142

Merged

cee-chen merged 13 commits intoelastic:high-contrast-modefrom

cee-chen:high-contrast-mode-1

Nov 21, 2024

Commits on Nov 19, 2024

Commits on Nov 20, 2024

[PR feedback] Docs copy/typos
cee-chen
committed
[PR feedback] Easier true/false/undefined testing via Storybook
cee-chen
committed
[refactor] Move high contrast `modify` overrides to separate hook in anticipation of new theme tokens
cee-chen
committed