feat: enhance welcome page with organization selection and workspace switching functionality

lib/welcomeAnalytics.ts

@@ -6,6 +6,7 @@
 
 export type WelcomeEventName =
   | 'welcome_step_view'
+  | 'welcome_workspace_selected'
   | 'welcome_workspace_created'
   | 'welcome_plan_continue'
   | 'welcome_plan_skip'
@@ -47,6 +48,10 @@ export function trackWelcomeStepView(step: number) {
   emit('welcome_step_view', { step })
 }
 
+export function trackWelcomeWorkspaceSelected() {
+  emit('welcome_workspace_selected')
+}
+
 export function trackWelcomeWorkspaceCreated(hadPendingCheckout: boolean) {
   emit('welcome_workspace_created', { had_pending_checkout: hadPendingCheckout })
 }