replace and remove search icon

resources/frontend_client/app/admin/databases/partials/database_table_list.html

 <div class="border-bottom py1">
-    <cv-search-icon class="ml2 text-grey-2" width="18" height="18"></cv-search-icon>
+    <mb-icon name="search" class="ml2 text-grey-2" width="18" height="18"></mb-icon>
     <input class="Form-input Form-input--medium mx1" type="text" placeholder="Search for a table name" value="" ng-model="tableSearchText" autofocus>
 </div>
 <div class="DatabaseList" mb-scroll-shadow>

resources/frontend_client/app/components/icons/search.html

-<svg id="search" viewBox="0 0 32 32" fill="currentcolor" ng-attr-width="{{width}}" ng-attr-height="{{height}}">
-    <path d="M12 0 A12 12 0 0 0 0 12 A12 12 0 0 0 12 24 A12 12 0 0 0 18.5 22.25 L28 32 L32 28 L22.25 18.5 A12 12 0 0 0 24 12 A12 12 0 0 0 12 0 M12 4 A8 8 0 0 1 12 20 A8 8 0 0 1 12 4  "></path>
-</svg>