feat: default to fixed width icons with icon shortcode

data/assets.toml

@@ -57,8 +57,8 @@
   sri = "sha256-pB/deHc9CGfFpJRjC43imB29Rse8tak+5eXqntO94ck="
   url = "https://cdnjs.cloudflare.com/ajax/libs/anchor-js/%s/anchor.min.js"
 [js.mermaid]
-  version = "8.4.3"
-  sri = ""  # SRI unavailable.
+  version = "8.4.4"
+  sri = "sha256-JEqEejGt4tR35L0a1zodzsV0/PJ6GIf7J4yDtywdrH8="
   url = "https://cdnjs.cloudflare.com/ajax/libs/mermaid/%s/mermaid.min.js"
 [js.lazysizes]
   version = "5.1.2"

layouts/shortcodes/icon.html

@@ -5,5 +5,6 @@
   {{- if in (slice "fab" "fas" "far" "fal") $pack -}}
     {{- $pack_prefix = "fa" -}}
   {{- end -}}
-  <i class="{{ $pack }} {{ $pack_prefix }}-{{ $icon }} {{with (.Get "padding_left")}}pl-{{.}}{{end}} {{with (.Get "padding_right")}}pr-{{.}}{{end}}"></i>
+  {{- $padding_right := (.Get "padding_right") | default 1 -}}{{/* Defaulting to 1 prevents no spacing when minimizing HTML. */}}
+  <i class="{{ $pack }} {{ $pack_prefix }}-{{ $icon }} {{with (.Get "padding_left")}}pl-{{.}}{{end}} {{with $padding_right}}pr-{{.}}{{end}} {{if ne (.Get "fixed_width") "false"}}fa-fw{{end}}"></i>
 {{- end -}}