Fix react build warnings

spa/src/useHover.js

@@ -1,4 +1,4 @@
-import React, { useEffect, useRef, useState } from "react";
+import { useEffect, useRef, useState } from "react";
 
 function useHover() {
   const [value, setValue] = useState(false);
@@ -16,8 +16,8 @@ function useHover() {
           node.removeEventListener("mouseout", handleMouseOut);
         };
       }
-    },
-    [ref.current] // Recall only if ref changes
+    } //,
+    //[ref.current] // Recall only if ref changes
   );
   return [ref, value];
 }