enhancement: add scrollbar in column list

Co-authored-by: gitstart <gitstart@gitstart.com>
Co-authored-by: frankmagoba <franklinmagoba4@gmail.com>
Co-authored-by: gitstart_bot <gitstart_bot@users.noreply.github.com>

packages/nc-gui/components/smartsheet/toolbar/FieldListAutoCompleteDropdown.vue

@@ -89,4 +89,14 @@ if (!localValue.value) {
 .ant-select-selection-search-input {
   box-shadow: none !important;
 }
+::-webkit-scrollbar {
+  -webkit-appearance: none;
+  width: 7px;
+}
+
+::-webkit-scrollbar-thumb {
+  border-radius: 4px;
+  background-color: rgba(0, 0, 0, 0.5);
+  box-shadow: 0 0 1px rgba(255, 255, 255, 0.5);
+}
 </style>