[FIX] web,*: various nocontent helper fixes

* account, board, hr_holidays, mail, sale, website_sale

Small fixes on nocontent onboarding screens.

Initial commit: https://github.com/odoo/odoo/commit/a87d761fdbf345ada5dc93e0a686b08a0f5a0417

Details:

- list: centered;
- pivot/graph: centered + empty folder face;
- Dashboard app with nocontent helper;
- Discuss inbox/starred: centered without neutral/smiling faces;
    => no faces because it's too much with animated
       rainbow man when emptying the any of the boxes.
- hr_holidays: fixed onboarding screens;
- (technical) dropped obsolete 'o_view_nocontent_container' style;
- manual reconciliation 'nothing to reconcile': centered + inside form sheet;
    => renamed account's o_view_nocontent to o_view_noreconciliation,
       so that it doesn't use the style of views.less.
- kanban: nocontent helper above the columns (if any);
- texts "no order to upsell"/"abandonned cart" paragraph split in two.

1 files changed, 4 insertions, 11 deletions

diff --git a/addons/web/static/src/less/views.less b/addons/web/static/src/less/views.less
index fa50c2e2bd8..aaa75b9156a 100644
--- a/addons/web/static/src/less/views.less
+++ b/addons/web/static/src/less/views.less
@@ -39,18 +39,11 @@
 }
 
 // No content helper
-.o_view_nocontent_container {
-    .o-flex-display();
-    height: 100%;
-    padding: 0;
-}
-
 .o_view_nocontent {
-    &.o_kanban_view_nocontent {
-        .o-position-absolute(20%, 0, 0, 0);        
-        pointer-events: none;
-    }
-
+    .o-position-absolute(20%, 0, 0, 0);        
+    pointer-events: none;
+    z-index: 1;
+    
     .o_nocontent_help {
         pointer-events: auto;
         max-width: 650px;