Do not restart Pace on every pushState event

* See: https://github.com/next-theme/hexo-theme-next/issues/362

layout/_third-party/index.njk

@@ -18,3 +18,5 @@
 {%- include 'tags/mermaid.njk' -%}
 
 {%- include 'fancybox.njk' -%}
+
+{%- include 'pace.njk' -%}

layout/_third-party/pace.njk

@@ -0,0 +1,3 @@
+{%- if theme.pace.enable %}
+  {{ next_js('third-party/pace.js') }}
+{%- endif %}

scripts/filters/minify.js

@@ -137,6 +137,10 @@ hexo.extend.filter.register('after_generate', () => {
     hexo.route.remove('js/third-party/fancybox.js');
   }
 
+  if (!theme.pace.enable) {
+    hexo.route.remove('js/third-party/pace.js');
+  }
+
   if (!theme.quicklink.enable) {
     hexo.route.remove('js/third-party/quicklink.js');
   }

source/js/third-party/pace.js

@@ -0,0 +1,7 @@
+/* global Pace */
+
+Pace.options.restartOnPushState = false;
+
+document.addEventListener('pjax:send', () => {
+  Pace.restart();
+});