Replace the Spreadsheet panel with an improved Data panel (#3037)

* Improve the table data panel

* Add the "Window" menu bar section and polish everything

editor/src/messages/portfolio/menu_bar/menu_bar_message_handler.rs

@@ -16,10 +16,12 @@ pub struct MenuBarMessageHandler {
 	pub has_selected_nodes: bool,
 	pub has_selected_layers: bool,
 	pub has_selection_history: (bool, bool),
-	pub spreadsheet_view_open: bool,
 	pub message_logging_verbosity: MessageLoggingVerbosity,
 	pub reset_node_definitions_on_open: bool,
 	pub make_path_editable_is_allowed: bool,
+	pub data_panel_open: bool,
+	pub layers_panel_open: bool,
+	pub properties_panel_open: bool,
 }
 
 #[message_handler_data]
@@ -585,18 +587,40 @@ impl LayoutHolder for MenuBarMessageHandler {
 						disabled: no_active_document,
 						..MenuBarEntry::default()
 					}],
+				]),
+			),
+			MenuBarEntry::new_root(
+				"Window".into(),
+				false,
+				MenuBarEntryChildren(vec![
+					vec![
+						MenuBarEntry {
+							label: "Properties".into(),
+							icon: Some(if self.properties_panel_open { "CheckboxChecked" } else { "CheckboxUnchecked" }.into()),
+							shortcut: action_keys!(PortfolioMessageDiscriminant::TogglePropertiesPanelOpen),
+							action: MenuBarEntry::create_action(|_| PortfolioMessage::TogglePropertiesPanelOpen.into()),
+							..MenuBarEntry::default()
+						},
+						MenuBarEntry {
+							label: "Layers".into(),
+							icon: Some(if self.layers_panel_open { "CheckboxChecked" } else { "CheckboxUnchecked" }.into()),
+							shortcut: action_keys!(PortfolioMessageDiscriminant::ToggleLayersPanelOpen),
+							action: MenuBarEntry::create_action(|_| PortfolioMessage::ToggleLayersPanelOpen.into()),
+							..MenuBarEntry::default()
+						},
+					],
 					vec![MenuBarEntry {
-						label: "Window: Spreadsheet".into(),
-						icon: Some(if self.spreadsheet_view_open { "CheckboxChecked" } else { "CheckboxUnchecked" }.into()),
-						action: MenuBarEntry::create_action(|_| SpreadsheetMessage::ToggleOpen.into()),
-						disabled: no_active_document,
+						label: "Data".into(),
+						icon: Some(if self.data_panel_open { "CheckboxChecked" } else { "CheckboxUnchecked" }.into()),
+						shortcut: action_keys!(PortfolioMessageDiscriminant::ToggleDataPanelOpen),
+						action: MenuBarEntry::create_action(|_| PortfolioMessage::ToggleDataPanelOpen.into()),
 						..MenuBarEntry::default()
 					}],
 				]),
 			),
 			MenuBarEntry::new_root(
 				"Help".into(),
-				true,
+				false,
 				MenuBarEntryChildren(vec![
 					vec![MenuBarEntry {
 						label: "About Graphite…".into(),