Feat: make footer expand on hover

chore: rename status variable from showExpandBtn to canExpand

Chore: disable notific. card, redirect to dashboard on logo click

This commit also fixes eslint warnings about anonymous exports
On the header, the Dashboard link is removed, in favour of adding
a redirect on click on the Lamassu Admin text. "Machines" header
link is removed as well, and a machine profile can be accessed
through the dashboard -> System Status card

new-lamassu-admin/src/components/layout/Header.js

@@ -60,7 +60,9 @@ const Header = memo(({ tree }) => {
     <header>
       <div className={classes.header}>
         <div className={classes.content}>
-          <div className={classes.logo}>
+          <div
+            onClick={() => history.push('/dashboard')}
+            className={classnames(classes.logo, classes.logoLink)}>
             <Logo />
             <H4 className={classes.white}>Lamassu Admin</H4>
           </div>