ISTWCMS-4181: Add Codepen black to External embeds

config/install/layout_builder_browser.layout_builder_browser_blockcat.uw_bc_external_embeds.yml

@@ -5,6 +5,11 @@ id: uw_bc_external_embeds
 label: 'External embeds'
 weight: null
 blocks:
+  -
+    block_id: 'inline_block:uw_cbl_codepen'
+    weight: 0
+    image_path: /profiles/uw_base_profile/themes/uw_fdsu_theme_resp/images/layout_builder_browser/codepen.svg
+    image_alt: codepen
   -
     block_id: 'inline_block:uw_cbl_facebook'
     weight: 0