Improve taxonomy handling

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

layouts/partials/components/image/index.html

@@ -9,8 +9,8 @@
 {{- if reflect.IsMap $image -}}
   {{- $src = $image.src | default "" -}}
   {{- $caption = $image.caption | default "" -}}
-  {{- $title = $image.title | default $caption | default "" -}}
-  {{- $alt = $image.alt | default $title | default "" -}}
+  {{- $title = $image.title | default $caption | default "" | plainify -}}
+  {{- $alt = $image.alt | default $title | default "" | plainify -}}
 {{- end -}}
 
 {{- if $src -}}
@@ -34,6 +34,7 @@
     {{- $thumb = . | images.Filter (images.Process "webp q75") -}}
   {{- end -}}
 
+
   <figure class="captioned-image lightbox">
     <a
       href="{{- $full.RelPermalink -}}"