Remove "Home" from the home page's <title>

@feorlen pointed out that this doesn't interact well with how Chrome
handles page titles with hyphens in them:

> It's prefixed with "Home -" and for some reason Chrome homepage
> shortcuts only show the part before the hyphen.

@jdillard suggested that:

> I don’t think “Home” needs to be in the title of the page at all,
> that is more a breadcrumbs thing.

And we agreed. The document title for the root page should be
sufficent.

src/furo/theme/furo/base.html

@@ -42,7 +42,7 @@
     {#- Site title -#}
     {%- block htmltitle -%}
       {% if pagename == master_doc %}
-        <title>{{ _("Home") }} - {{ docstitle|striptags|e }}</title>
+        <title>{{ docstitle|striptags|e }}</title>
       {% else %}
         <title>{{ title|striptags|e }} - {{ docstitle|striptags|e }}</title>
       {% endif %}