Implement context menu

Summary:
Re-introduced context menu to DataTable, due to popular demand.

Originally it wasn't there to better align with ant design principles, but in an app like Flipper it makes just too much sense to have it

See e.g. https://fb.workplace.com/groups/flippersupport/permalink/1138285579985432/

changelog: Restored context menu in data tables

Reviewed By: passy

Differential Revision: D28996137

fbshipit-source-id: 16ef4c90997c9313efa62da7576fd453a7853761

desktop/flipper-plugin/src/ui/data-table/TableContextMenu.tsx

@@ -45,19 +45,19 @@ export function tableContextMenuFactory<T>(
     );
   }
   const hasSelection = selection.items.size > 0 ?? false;
-
   return (
     <Menu>
       {onContextMenu
         ? onContextMenu(getSelectedItem(datasource, selection))
         : null}
       <SubMenu
+        key="filter same"
         title="Filter on same"
         icon={<FilterOutlined />}
         disabled={!hasSelection}>
-        {visibleColumns.map((column) => (
+        {visibleColumns.map((column, idx) => (
           <Item
-            key={column.key}
+            key={column.key ?? idx}
             onClick={() => {
               dispatch({
                 type: 'setColumnFilterFromSelection',
@@ -69,12 +69,13 @@ export function tableContextMenuFactory<T>(
         ))}
       </SubMenu>
       <SubMenu
+        key="copy cells"
         title="Copy cell(s)"
         icon={<CopyOutlined />}
         disabled={!hasSelection}>
-        {visibleColumns.map((column) => (
+        {visibleColumns.map((column, idx) => (
           <Item
-            key={column.key}
+            key={column.key ?? idx}
             onClick={() => {
               const items = getSelectedItems(datasource, selection);
               if (items.length) {
@@ -88,6 +89,7 @@ export function tableContextMenuFactory<T>(
         ))}
       </SubMenu>
       <Item
+        key="copyToClipboard"
         disabled={!hasSelection}
         onClick={() => {
           const items = getSelectedItems(datasource, selection);
@@ -99,6 +101,7 @@ export function tableContextMenuFactory<T>(
       </Item>
       {lib.isFB && (
         <Item
+          key="createPaste"
           disabled={!hasSelection}
           onClick={() => {
             const items = getSelectedItems(datasource, selection);
@@ -110,9 +113,9 @@ export function tableContextMenuFactory<T>(
         </Item>
       )}
       <Menu.Divider />
-      <SubMenu title="Visible columns">
-        {columns.map((column) => (
-          <Menu.Item key={column.key}>
+      <SubMenu title="Visible columns" key="visible columns">
+        {columns.map((column, idx) => (
+          <Menu.Item key={column.key ?? idx}>
             <Checkbox
               checked={column.visible}
               onClick={(e) => {