feat: show welcome screen on first login

apps/client/src/common/stores/dialogStore.ts

@@ -0,0 +1,24 @@
+import { MaybeString } from 'ontime-types';
+import { create } from 'zustand';
+
+interface DialogStore {
+  showDialog: MaybeString;
+  setDialog: (name: string) => void;
+  clearDialog: () => void;
+}
+
+/**
+ * Used to allow the server to show a dialog in the client
+ */
+export const useDialogStore = create<DialogStore>((set) => ({
+  showDialog: null,
+  clearDialog: () => set({ showDialog: null }),
+  setDialog: (name) => set({ showDialog: name }),
+}));
+
+/**
+ * Allows setting a dialog to show (outside react)
+ */
+export function addDialog(name: string): void {
+  useDialogStore.getState().setDialog(name);
+}