UX: add double class declarations (#72)

scss/modal/insert-table-modal.scss

@@ -23,10 +23,12 @@
   flex-direction: column;
   align-items: flex-start;
 
+  .d-modal__container,
   .modal-inner-container {
     --modal-max-width: $reply-area-max-width;
     width: 100%;
     height: 100%;
+    max-height: unset;
 
     display: grid;
     grid-template-rows: auto 1fr auto;
@@ -37,6 +39,7 @@
     margin: 0;
   }
 
+  .d-modal__footer,
   .modal-footer {
     display: flex;
     align-items: center;