huge upgrade to theme and pagefind search bar.

themes/hugo-book.backup/layouts/_partials/docs/footer.html

@@ -0,0 +1,24 @@
+<div class="flex flex-wrap justify-between">
+
+<div>
+{{ if and .GitInfo .Site.Params.BookLastChangeLink }}
+  {{- $date := partial "docs/date" (dict "Date" .Lastmod "Format" .Site.Params.BookDateFormat) -}}
+  <a class="flex align-center" href="{{ partial "docs/links/commit" . }}" title='{{ partial "docs/text/i18n" "Last modified by" }} {{ .GitInfo.AuthorName }} | {{ $date }}' target="_blank" rel="noopener">
+    <img src="{{ partial "docs/icon" "calendar" }}" class="book-icon" alt="{{ partial "docs/text/i18n" "Calendar" }}" />
+    <span>{{ $date }}</span>
+  </a>
+{{ end }}
+</div>
+
+<div>
+{{ if and .File .Site.Params.BookEditLink }}
+  <a class="flex align-center" href="{{ partial "docs/links/edit" . }}" target="_blank" rel="noopener edit">
+    <img src="{{ partial "docs/icon" "edit" }}" class="book-icon" alt="{{ partial "docs/text/i18n" "Edit" }}" />
+    <span>{{ partial "docs/text/i18n" "Edit this page" }}</span>
+  </a>
+{{ end }}
+</div>
+
+</div>
+
+{{ partial "docs/prev-next" . }}