fix(bio): add aria-hidden=true to decorative accent-line spans in all headings

Agent-Logs-Url: https://github.com/NextCommunity/NextCommunity.github.io/sessions/3efa40f9-a3be-4701-9400-ebf98f3ec7b3

Co-authored-by: jbampton <418747+jbampton@users.noreply.github.com>

Author: Copilot

src/_includes/bio.njk

@@ -77,7 +77,7 @@
         {% if bio %}
         <div class="user-card p-8 sm:p-12 rounded-3xl">
           <h2 class="text-xs font-black uppercase tracking-[0.3em] text-[var(--text-muted)] mb-6 flex items-center gap-2">
-            <span class="w-8 h-[2px] bg-accent"></span> Professional Bio
+            <span class="w-8 h-[2px] bg-accent" aria-hidden="true"></span> Professional Bio
           </h2>
           <div class="text-[var(--text-main)] text-lg leading-relaxed whitespace-pre-line">
             {{ bio }}
@@ -88,7 +88,7 @@
         {% if languages is defined and languages is not null %}
         <div class="user-card p-8 sm:p-12 rounded-3xl">
           <h2 class="text-xs font-black uppercase tracking-[0.3em] text-[var(--text-muted)] mb-6 flex items-center gap-2">
-            <span class="w-8 h-[2px] bg-accent"></span> Technologies
+            <span class="w-8 h-[2px] bg-accent" aria-hidden="true"></span> Technologies
           </h2>
           <div class="flex flex-wrap gap-3">
               {% set skills = languages.split(' ') %}