Update favicon, move to separate shortcode for customization

layouts/partials/docs/brand.html

@@ -1,7 +1,7 @@
 <h2 class="book-brand">
   <a class="flex align-center" href="{{ cond (not .Site.Home.File) .Sites.Default.Home.RelPermalink .Site.Home.RelPermalink }}">
     {{- with .Site.Params.BookLogo -}}
-    <img src="{{ . | relURL }}" alt="Logo" />
+    <img src="{{ . | relURL }}" alt="Logo" class="book-icon" />
     {{- end -}}
     <span>{{ .Site.Title }}</span>
   </a>

layouts/partials/docs/html-head-favicon.html

@@ -0,0 +1 @@
+<link rel="icon" href="{{ .Site.Params.BookFavicon | default "favicon.png" | relURL }}" >

layouts/partials/docs/html-head.html

@@ -12,10 +12,10 @@
 {{- template "_internal/opengraph.html" . -}}
 
 <title>{{ partial "docs/html-head-title" . }}</title>
+{{ partial "docs/html-head-favicon" . }}
 
 {{- $manifest := resources.Get "manifest.json" | resources.ExecuteAsTemplate "manifest.json" . }}
 <link rel="manifest" href="{{ $manifest.RelPermalink }}">
-<link rel="icon" href="{{ .Site.Params.BookFavicon | default "favicon.png" | relURL }}" >
 <link rel="canonical" href="{{ .Permalink }}">
 
 {{- range .Translations }}

static/favicon.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 0 24 24" width="24"><path d="M0 0h24v24H0V0z" fill="none"/><path d="M3 18h12v-2H3v2zM3 6v2h18V6H3zm0 7h18v-2H3v2z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 -960 960 960" width="24px"><path d="M480-160q-48-38-104-59t-116-21q-42 0-82.5 11T100-198q-21 11-40.5-1T40-234v-482q0-11 5.5-21T62-752q46-24 96-36t102-12q58 0 113.5 15T480-740v484q51-32 107-48t113-16q36 0 70.5 6t69.5 18v-480q15 5 29.5 10.5T898-752q11 5 16.5 15t5.5 21v482q0 23-19.5 35t-40.5 1q-37-20-77.5-31T700-240q-60 0-116 21t-104 59Zm80-200v-380l200-200v400L560-360Zm-160 65v-396q-33-14-68.5-21.5T260-720q-37 0-72 7t-68 21v397q35-13 69.5-19t70.5-6q36 0 70.5 6t69.5 19Zm0 0v-396 396Z"/></svg>