Modularize frontend app script

wwwroot/js/state.js

@@ -0,0 +1,33 @@
+export const state = {
+    isAuthenticated: false,
+    authMode: "login",
+    me: null,
+    phase: null,
+    prevPhase: null,
+    counts: null,
+    mySuggestions: [],
+    allSuggestions: [],
+    allSuggestionsSig: null,
+    myVotes: [],
+    results: [],
+    votesRendered: false,
+};
+
+export function clearUserState() {
+    state.me = null;
+    state.phase = null;
+    state.prevPhase = null;
+    state.counts = null;
+    state.mySuggestions = [];
+    state.allSuggestions = [];
+    state.myVotes = [];
+    state.results = [];
+    state.votesRendered = false;
+    const adminCard = document.getElementById("admin-card");
+    if (adminCard) adminCard.classList.add("hidden");
+}
+
+export const getSavedUsername = () =>
+    localStorage.getItem("last_username") || "";
+export const setSavedUsername = (name) =>
+    localStorage.setItem("last_username", name);