There is no single point of reference to discover the available key shortcuts in the web editor.
Many key shortcuts can only be discovered through tooltips on UI elements, and some key shortcuts cannot be discovered through the UI.
A key shortcut summary has been added that shows available key shortcuts for the current view. The summary is shown by clicking a keyboard icon or by inputting Alt+Y, and hidden by clicking outside the summary or pressing Esc. Only the currently active shortcuts shown (e.g. editor shortcuts are only shown when the editor is open).
Users can click the keyboard icon or press Alt+Y to discover all currently available key shortcuts.