message: Turn remaining top navbar "hover dropdowns" to "click dropdowns"
diff: {% include "header/global_alert.html" -%}
  <ul class="pure-menu-list">
  - <li class="pure-menu-item pure-menu-has-children pure-menu-allow-hover pure-menu-opt-children">
  - <a href="/releases" class="pure-menu-link">
  + <li class="pure-menu-item pure-menu-has-children">
  + <a href="#" class="pure-menu-link">
  <span title="Releases">{{ "leaf" | fas }}</span>
  <span class="title">Releases</span>
  </a>
  <ul class="pure-menu-children">
  + {{ macros::menu_link(href="/releases", text="All Releases") }}
  {{ macros::menu_link(href="/releases/stars", text="Releases by Stars") }}
  {{ macros::menu_link(href="/releases/recent-failures", text="Recent Build Failures") }}
  {{ macros::menu_link(href="/releases/failures", text="Build Failures by Stars") }}
  </li>{#
  The Rust dropdown menu
  - #}<li class="pure-menu-item pure-menu-has-children pure-menu-allow-hover pure-menu-opt">
  - <a href="https://www.rust-lang.org/" target="_blank" class="pure-menu-link">
  - Rust
  - </a>
  -
  + #}<li class="pure-menu-item pure-menu-has-children">
  + <a href="#" class="pure-menu-link" aria-label="Rust">Rust</a>
  <ul class="pure-menu-children">
  + {{ macros::menu_link(
  + href="https://www.rust-lang.org/",
  + text="Rust website",
  + target="_blank"
  + ) }}
  {{ macros::menu_link(
  href="https://doc.rust-lang.org/book/",
  text="The Book",
  