Add social icon for Pleroma (adityatelange#1293)

Author: coxde

layouts/partials/svg.html

@@ -501,6 +501,10 @@
 <svg width="24" height="24" version="1.1" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
  <path id="pixelfed" d="m12 .99649c-6.077 0-11.004 4.9264-11.004 11.004 0 6.077 4.9264 11.004 11.004 11.004 6.077 0 11.004-4.9264 11.004-11.004 0-6.077-4.9264-11.004-11.004-11.004zm-1.7683 6.7017h2.9133c1.9016 1e-6 3.4428 1.5006 3.4428 3.3518 0 1.8512-1.5414 3.3526-3.4428 3.3526h-2.0185l-2.8816 2.756v-7.5262c0-1.068.8896-1.9342 1.9867-1.9342z" fill="none" stroke="currentColor" stroke-width="1.993"/>
 </svg>
+{{- else if (eq $icon_name "pleroma") -}}
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor">
+    <path d="M6.36 0A1.868 1.868 0 004.49 1.868V24h5.964V0zm7.113 0v12h4.168a1.868 1.868 0 001.868-1.868V0zm0 18.036V24h4.168a1.868 1.868 0 001.868-1.868v-4.096Z"/>
+</svg>
 {{- else if (eq $icon_name "qq") -}}
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"
     stroke-linecap="round" stroke-linejoin="round">