copied the dashboard and made a keybinding to change back and forth between them; ready to turn dashboard2 into a boardview dashboard

pkg/tui/msgs/msgs.go

@@ -0,0 +1,7 @@
+package msgs
+
+// SwitchToDashboardMsg signals to switch to the main dashboard view.
+type SwitchToDashboardMsg struct{}
+
+// SwitchToDashboard2Msg signals to switch to the dashboard2 view.
+type SwitchToDashboard2Msg struct{}