Rework user selection (#1728)

* Move to new route

* Convert to tailwind

* Basic style

* Add userStore

* nit

* nit

* nit

* Remove app.#setUser

* Route to user-select view

* Mock login

* Use primevue UI components

* handle create new user

* Remove legacy user selection

* Add logout button on side toolbar

* Add username to logout button tooltip

* Add playwright tests

* hide logout button in single user server

* nit

src/types/apiTypes.ts

@@ -431,8 +431,10 @@ export const zSystemStats = z.object({
 })
 const zUser = z.object({
   storage: z.enum(['server']),
-  migrated: z.boolean(),
-  users: z.record(z.string(), z.unknown())
+  // `migrated` is only available in single-user mode.
+  migrated: z.boolean().optional(),
+  // `users` is only available in multi-user server mode.
+  users: z.record(z.string(), z.string()).optional()
 })
 const zUserData = z.array(z.array(z.string(), z.string()))
 const zUserDataFullInfo = z.object({