fix(modal): fix content css-inheritance on mobile

Modal module adds padding to ".description" block when window size less 769px.
Search blocks can contain ".description" inside. When search block is inside modal, then ".description" inside search breaks down on screen less 769px.

Author: byte916

src/definitions/modules/modal.less

@@ -256,7 +256,7 @@
   .ui.modal .image.content {
     flex-direction: column;
   }
-  .ui.modal .content > .image {
+  .ui.modal > .content > .image {
     display: block;
     max-width: 100%;
     margin: 0 auto !important;
@@ -269,7 +269,7 @@
   }
 
   /*rtl:ignore*/
-  .ui.modal .content > .description {
+  .ui.modal > .content > .description {
     display: block;
     width: 100% !important;
     margin: 0 !important;