feat(config-toggle): allow specifying title (#95)

layouts/partials/bootstrap/config-toggle.html

@@ -2,18 +2,30 @@
 {{- $langs := default (slice "toml" "yaml" "json") site.Params.bootstrap.config_toggle.langs }}
 {{- $style := "tabs" }}
 {{- $fill := false }}
+{{- $title := "" }}
 {{- if .IsNamedParams }}
   {{- with .Get "filename" }}{{ $filename = . }}{{ end }}
   {{- with .Get "langs" }}{{ $langs = split . "," }}{{ end }}
   {{- with .Get "style" }}{{ $style = . }}{{ end }}
   {{- with .Get "fill" }}{{ $fill = . }}{{ end }}
+  {{- with .Get "title" }}{{ $title = . }}{{ end }}
 {{- else }}
   {{- with .Get 0 }}{{ $filename = . }}{{ end }}
   {{- with .Get 1 }}{{ $langs = split . "," }}{{ end }}
 {{- end }}
 {{- $idPrefix := printf "%s-%s" (replaceRE "[\\|/]" "-" $filename) (delimit (shuffle (seq 1 9)) "") -}}
 <div class="config-toggle mb-3">
   <ul class="nav nav-{{ $style }} mb-1{{ cond $fill ` nav-fill` `` }}" role="tablist">
+    {{- with $title }}
+      <li class="nav-item mb-0 flex-grow-0" role="presentation">
+        <button
+          class="nav-link fw-bold disabled"
+          type="button"
+          role="tab">
+          {{ . }}
+        </button>
+      </li>
+    {{- end }}
     {{- range $i, $lang := $langs -}}
       {{- $id := printf "code-toggle-%s-%s" $idPrefix $lang -}}
       <li class="nav-item mb-0" role="presentation">