Update the name of the class used to bold fonts

This was a breaking change in Bootstrap 5. See
https://getbootstrap.com/docs/5.2/migration/#utilities

layouts/partials/navbar.html

@@ -1,15 +1,18 @@
 {{/*
 
-  A version of the navbar.html partial in Docsy, only modified
-	to include the spec version, which is calculated using an
-  inline `version-string` partial.
+A version of the navbar.html partial in Docsy, only modified
+to include the spec version, which is calculated using an
+inline `version-string` partial.
 
 */}}
 
 {{ $cover := .HasShortcode "blocks/cover" }}
-<nav class="js-navbar-scroll navbar navbar-expand navbar-light {{ if $cover}} td-navbar-cover {{ end }}flex-column flex-md-row td-navbar">
-        <a class="navbar-brand" href="{{ .Site.Home.RelPermalink }}">
-		<span class="navbar-logo">{{ with resources.Get "icons/logo.svg" }}{{ ( . | minify).Content | safeHTML }}{{ end }}</span><span class="font-weight-bold">specification</span><span class="navbar-version"> &mdash; {{ partial "version-string" . }}</span>
+<nav
+	class="js-navbar-scroll navbar navbar-expand navbar-light {{ if $cover}} td-navbar-cover {{ end }}flex-column flex-md-row td-navbar">
+	<a class="navbar-brand" href="{{ .Site.Home.RelPermalink }}">
+		<span class="navbar-logo">{{ with resources.Get "icons/logo.svg" }}{{ ( . | minify).Content | safeHTML }}{{ end
+			}}</span><span class="fw-bold">specification</span><span class="navbar-version"> &mdash; {{ partial
+			"version-string" . }}</span>
 	</a>
 	<div class="td-navbar-nav-scroll ml-md-auto" id="main_navbar">
 		<ul class="navbar-nav mt-2 mt-lg-0">
@@ -17,18 +20,18 @@
 			<li class="nav-item mr-4 mb-2 mb-lg-0"><a href="https://matrix.org/foundation/">Foundation</a>
 			</li>
 
-      <li class="nav-item mr-4 mb-2 mb-lg-0"><a href="https://matrix.org/faq/">FAQs</a>
+			<li class="nav-item mr-4 mb-2 mb-lg-0"><a href="https://matrix.org/faq/">FAQs</a>
 			</li>
 
-      <li class="nav-item mr-4 mb-2 mb-lg-0"><a href="https://matrix.org/blog/posts">Blog</a>
-      </li>
+			<li class="nav-item mr-4 mb-2 mb-lg-0"><a href="https://matrix.org/blog/posts">Blog</a>
+			</li>
 
-			{{ if  .Site.Params.versions }}
+			{{ if .Site.Params.versions }}
 			<li class="nav-item dropdown d-none d-lg-block">
 				{{ partial "navbar-version-selector.html" . }}
 			</li>
 			{{ end }}
-			{{ if  (gt (len .Site.Home.Translations) 0) }}
+			{{ if (gt (len .Site.Home.Translations) 0) }}
 			<li class="nav-item dropdown d-none d-lg-block">
 				{{ partial "navbar-lang-selector.html" . }}
 			</li>
@@ -40,16 +43,16 @@
 
 
 {{ define "partials/version-string" }}
-    {{ $ret := "unstable version"}}
-
-    {{ $status := .Site.Params.version.status }}
+{{ $ret := "unstable version"}}
 
-    {{ if ne $status "unstable"}}
-        {{ $path := path.Join "changelogs" }}
+{{ $status := .Site.Params.version.status }}
 
-        {{/* produces a string similar to "version v1.5" */}}
-        {{ $ret = delimit (slice "version v" .Site.Params.version.major "." .Site.Params.version.minor) "" }}
-    {{ end }}
+{{ if ne $status "unstable"}}
+{{ $path := path.Join "changelogs" }}
 
-    {{ return $ret }}
+{{/* produces a string similar to "version v1.5" */}}
+{{ $ret = delimit (slice "version v" .Site.Params.version.major "." .Site.Params.version.minor) "" }}
 {{ end }}
+
+{{ return $ret }}
+{{ end }}