some UX improvements

Signed-off-by: ari melody <ari@arimelody.me>

public/script/header.js

@@ -1,3 +1,4 @@
+const header_home = document.getElementById("header-home");
 const header_links = document.getElementById("header-links");
 const hamburger = document.getElementById("header-links-toggle");
 
@@ -12,3 +13,8 @@ document.addEventListener("click", event => {
 });
 
 hamburger.addEventListener("click", event => { toggle_header_links(); });
+
+header_home.addEventListener("click", event => {
+        event.preventDefault();
+        location.href = "/";
+});