Search: Set element height to 100% to avoid Chrome 74's overflow (#17054)

Fixes #16981

public/sass/components/_search.scss

@@ -31,6 +31,7 @@
   display: flex;
   flex-direction: column;
   flex-grow: 1;
+  height: 100%; // Chrome 74 needs this to make the element scrollable
 
   .search-item--indent {
     margin-left: 14px;
@@ -258,10 +259,6 @@
     align-items: flex-start;
   }
 
-  .search-dropdown__col_1 {
-    height: 100%;
-  }
-
   .search-filter-box {
     margin: 0;
   }