Fix add button. Fix hotkeys in settings. Add Workspace hotkeys

Downterm/CommandNotch/Views/WorkspacesSettingsView.swift

@@ -75,6 +75,11 @@ struct WorkspacesSettingsView: View {
                                 renameSelectedWorkspace()
                             }
 
+                        OptionalHotkeyRecorderView(
+                            label: "Jump Hotkey",
+                            binding: workspaceHotkeyBinding(for: summary.id)
+                        )
+
                         HStack {
                             Button("Save Name") {
                                 renameSelectedWorkspace()
@@ -86,6 +91,10 @@ struct WorkspacesSettingsView: View {
                             }
                             .accessibilityIdentifier("settings.workspaces.new")
                         }
+
+                        Text("Workspace jump hotkeys are active when the notch is open and switch the current screen to this workspace.")
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
                     }
 
                     Section("Usage") {
@@ -256,6 +265,17 @@ struct WorkspacesSettingsView: View {
         renameDraft = workspaceRegistry.summary(for: workspaceID)?.name ?? ""
     }
 
+    private func workspaceHotkeyBinding(for workspaceID: WorkspaceID) -> Binding<HotkeyBinding?> {
+        Binding(
+            get: {
+                workspaceRegistry.summary(for: workspaceID)?.hotkey
+            },
+            set: { newValue in
+                workspaceRegistry.updateWorkspaceHotkey(id: workspaceID, to: newValue)
+            }
+        )
+    }
+
     private func deleteSelectedWorkspace() {
         guard let effectiveSelectedWorkspaceID,
               let fallbackWorkspaceID = screenRegistry.deleteWorkspace(