FEAT #15272 TIME 0:15 fix css

src/frontend/app/administration/contact/list/import/contact-import.component.scss

 @import '../../../../../css/vars.scss';
 
+.mat-dialog-content {
+    display: flex;
+    flex-direction: column;
+}
+
 .loader {
     display: flex;
     height: 100%;
@@ -16,7 +21,7 @@
 }
 
 .dndFile {
-    height: 30%;
+    flex: 1;
     display: flex;
     align-items: center;
     margin: 0px;

src/frontend/app/administration/user/import/users-import.component.scss

 @import '../../../../css/vars.scss';
 
+.mat-dialog-content {
+    display: flex;
+    flex-direction: column;
+}
+
 .loader {
     display: flex;
     height: 100%;
@@ -16,7 +21,7 @@
 }
 
 .dndFile {
-    height: 30%;
+    flex: 1;
     display: flex;
     align-items: center;
     margin: 0px;