FIX: add missing copyright icon

FIX: add missing copyright icon

Icon is used in the admin UI for themes/theme components

diff --git a/lib/svg_sprite/svg_sprite.rb b/lib/svg_sprite/svg_sprite.rb
index 232cefb..96cae00 100644
--- a/lib/svg_sprite/svg_sprite.rb
+++ b/lib/svg_sprite/svg_sprite.rb
@@ -84,6 +84,7 @@ module SvgSprite
     "far-clipboard",
     "far-clock",
     "far-comment",
+    "far-copyright",
     "far-dot-circle",
     "far-edit",
     "far-envelope",

GitHub sha: 3e5e6c82