[feat] Change toggle panels shortcut key to `Shift-Escape` for better UX

[abose]

Describe the problem

Currently toggle panels has a confusing shortcut as Ctrl-Shift-~ .

Describe the solution you'd like

Pressing Esc key will toggle the bottom panels currently, except the plugin panel. So we can assign Shift-Escape key as an intiuitive toggle all panels(including plugins panel) shortcut.

However, it's important to note that there's a limitation in our current framework. Currently, Shift-Escape is assigned to reopen individual bottom panels that were previously closed using the Escape key. This limitation is a result of our current panel setup. In the future, as we transition to a tabbed panel system integrated into the status bar, we will have only one bottom panel. At that point, we can reassign Shift-Escape to efficiently execute the toggle all panels action.

Alternatives considered

No response

Additional context

No response