[FIX] web_editor: properly convert heights of masonry cells

Masonry's top inner container needs to have a 100% height to properly
size its contents.

task-2925779

X-original-commit: 717672d56958915084d98d69246c9e7e986fabab
Part-of: odoo/odoo#97962

addons/web_editor/static/src/js/backend/convert_inline.js

@@ -122,6 +122,9 @@ function bootstrapToTable($editable) {
     // These containers from the mass mailing masonry snippet require full
     // height contents, which is only possible if the table itself has a set
     // height. We also need to restyle it because of the change in structure.
+    for(const masonryTopInnerContainer of editable.querySelectorAll('.s_masonry_block > .container')) {
+        masonryTopInnerContainer.style.setProperty('height', '100%');
+    }
     for (const masonryGrid of editable.querySelectorAll('.o_masonry_grid_container')) {
         masonryGrid.style.setProperty('padding', 0);
         for (const fakeTable of [...masonryGrid.children].filter(c => c.classList.contains('o_fake_table'))) {