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.styles.js

@@ -20,7 +20,7 @@ if (version === 8) {
   subheaderHeight = spacer * 7
 }
 
-export default {
+const styles = {
   header: {
     backgroundColor: primaryColor,
     color: white,
@@ -164,5 +164,10 @@ export default {
     '& > svg': {
       marginRight: 16
     }
+  },
+  logoLink: {
+    cursor: 'pointer'
   }
 }
+
+export default styles