move drives manager command to toolbar

Author: DenisaCG

schema/drives-file-browser.json

@@ -28,8 +28,8 @@
         "rank": 40
       },
       {
-        "name": "new-drive",
-        "command": "drives:create-new-drive",
+        "name": "drives-manager",
+        "command": "drives:open-drives-dialog",
         "label": "",
         "rank": 5
       }

src/plugins/driveDialogPlugin.ts

@@ -74,11 +74,5 @@ export const openDriveDialogPlugin: JupyterFrontEndPlugin<void> = {
       caption: trans.__('Manage drives listed in filebrowser.'),
       label: trans.__('Manage listed drives')
     });
-
-    app.contextMenu.addItem({
-      command: CommandIDs.openDrivesDialog,
-      selector: '#drive-file-browser.jp-SidePanel',
-      rank: 100
-    });
   }
 };