Resolve all remaining lint issues (#88)

* Rework 'navIdx' variables from number arrays to strings to avoid equality-check failures in react hooks

* Resolve all remaining lint issues

* Fix tests

* Use node v18 in gh action test

src/view/com/util/Selector.tsx

@@ -41,7 +41,7 @@ export function Selector({
       width: middle.width,
     }
     return [left, middle, right]
-  }, [selectedIndex, items, itemLayouts])
+  }, [selectedIndex, itemLayouts])
 
   const underlineStyle = {
     backgroundColor: pal.colors.text,