refactor: bring down eslint warnings to zero (#1714)

- install `@eslint-react/eslint-plugin` dependency
- configure `@eslint-react/eslint-plugin` in eslint config
- modernize `lint` command in `package.json`
- disable or fix various reported lint issues
- fix `div` being nested in `p` for settings
- replace deprecated `event.keyCode` with `event.key`
- update isEscKeyPress method and unit tests which used deprecated `event.keyCode`
- allow `eslint` v8 as peer dependency for `@eslint-react/eslint-plugin`

1 files changed, 1 insertions, 1 deletions

diff --git a/src/components/ui/button/index.tsx b/src/components/ui/button/index.tsx
index 5c606f274..ba4353dae 100644
--- a/src/components/ui/button/index.tsx
+++ b/src/components/ui/button/index.tsx
@@ -223,7 +223,7 @@ class ButtonComponent extends Component<IProps, IState> {
     ) : (
       <button
         id={id}
-        // eslint-disable-next-line react/button-has-type
+        // eslint-disable-next-line react/button-has-type, @eslint-react/dom/no-missing-button-type
         type={type}
         onClick={onClick}
         className={classnames({