odoo/odoo#209437

Created by fw-bot
Merged at f2c6dc8c69964c43e57043208d5c5190feecae97

Statuses:

label
odoo-dev:master-saas-17.4-fix-kanban-z-index-juca-434749-fw
head
791b11d65dc35aaad1f32ea743622f5c2b0d0e00
merged
3 weeks ago by JavaScript, Julien Carion (juca)
odoo/odoo
saas-17.4 #208795
18.0 #209059
saas-18.1 #209171
saas-18.2 #209183
saas-18.3 #209198
master #209437

[FW][FIX] web: remove useless z-index in kanban

This commit removes the z-index priority of kanban groups, headers and quick create over the no-content helper since it became useless with #148138 and can now cause display issues when these elements are on top of each other (which can happen with the quick create column).

task-4778356

Forward-Port-Of: #209059
Forward-Port-Of: #208795