fix: removed table background

public/sass/components/_filter-table.scss

@@ -21,12 +21,6 @@
     }
   }
 
-  thead {
-    tr {
-      background: linear-gradient(0deg, #3c3f5a, #292f44);
-    }
-  }
-
   th {
     width: auto;
     padding: $table-cell-padding;