[IMP] theme_*: explode masonry snippet

See community commit for details

Note: this also fixes avantgarde svg/screenshot at the same time: we
remove the s_masonry_block but add the missing carousel.

(image contribution by MANO)

closes odoo/design-themes#1020

Related: odoo/odoo#183755
Related: odoo/upgrade#6642
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>
Co-authored-by: mano-odoo <mano@odoo.com>

theme_paptic/__manifest__.py

@@ -18,7 +18,7 @@
         'static/description/paptic_screenshot.jpg',
     ],
     'configurator_snippets': {
-        'homepage': ['s_cover', 's_references', 's_image_text', 's_text_image', 's_masonry_block', 's_faq_list', 's_cta_box'],
+        'homepage': ['s_cover', 's_references', 's_image_text', 's_text_image', 's_masonry_block_images_template', 's_faq_list', 's_cta_box'],
     },
     'new_page_templates': {
         'about': {