[Task 3061766] Global Keyboard Shortcuts, implemented through the Command Bar (#1789)

* keyboard shortcuts using tinykeys

* refmt and fix lints

* retarget keyboard shortcuts to the body instead of the root element of the React component tree

* refmt

* Update src/Explorer/Menus/CommandBar/CommandBarUtil.tsx

Co-authored-by: Laurent Nguyen <laurent.nguyen@microsoft.com>

* add Save binding to New Item command bar

---------

Co-authored-by: Laurent Nguyen <laurent.nguyen@microsoft.com>

src/Explorer/Menus/CommandBar/CommandBarUtil.tsx

@@ -7,6 +7,7 @@ import {
   IDropdownStyles,
 } from "@fluentui/react";
 import { useQueryCopilot } from "hooks/useQueryCopilot";
+import { KeyboardHandlerMap } from "KeyboardShortcuts";
 import * as React from "react";
 import _ from "underscore";
 import ChevronDownIcon from "../../../../images/Chevron_down.svg";
@@ -233,3 +234,28 @@ export const createConnectionStatus = (container: Explorer, poolId: PoolIdType,
     onRender: () => <ConnectionStatus container={container} poolId={poolId} />,
   };
 };
+
+export function createKeyboardHandlers(allButtons: CommandButtonComponentProps[]): KeyboardHandlerMap {
+  const handlers: KeyboardHandlerMap = {};
+
+  function createHandlers(buttons: CommandButtonComponentProps[]) {
+    buttons.forEach((button) => {
+      if (!button.disabled && button.keyboardAction) {
+        handlers[button.keyboardAction] = (e) => {
+          button.onCommandClick(e);
+
+          // If the handler is bound, it means the button is visible and enabled, so we should prevent the default action
+          return true;
+        };
+      }
+
+      if (button.children && button.children.length > 0) {
+        createHandlers(button.children);
+      }
+    });
+  }
+
+  createHandlers(allButtons);
+
+  return handlers;
+}