CSS fix: page-loader overlay below modal

adim_app/static/_src/less/adim.css

@@ -492,7 +492,7 @@ body {
   position: fixed;
   top: 55px;
   left: 0;
-  z-index: 10000;
+  z-index: 1040;
 }
 #page-loader div {
   text-align: center;

adim_app/static/_src/less/adim.less

@@ -75,7 +75,7 @@ html, body {
   position: fixed;
   top: 55px;
   left: 0;
-  z-index: 10000;
+  z-index: 1040;
   div {
     text-align: center;
     &:first-child { padding-top: 33%; }