[IMP] theme_artists, *: adapt s_attributes_horizontal

*: theme_loftspace, theme_nano, theme_orchid

This commit adapts customizations for `s_attributes_horizontal`.

task-4775848
Part of task-4252024

Author: Brieuc-brd

test_themes/tests/test_new_page_templates.py

@@ -110,7 +110,7 @@
     's_carousel_indicators_dots', 's_quotes_carousel', 's_rating_no_title',
     's_carousel_indicators_hidden', 's_blog_post_big_picture',
     's_newsletter_list', 's_event_upcoming_snippet', 's_event_event_picture',
-    's_newsletter_subscribe_form',
+    's_newsletter_subscribe_form', 's_attributes_img', 's_attributes_col',
 
     # FIXME those classes have no reason to be here... missing data-snippet?
     's_hr', 's_accordion', 's_accordion_highlight', 's_media_list_item',