make some overall QoL improvements

public/js/webSearch.js

@@ -5,15 +5,19 @@
 /** @typedef {{message: string, model: string, chatId: number, webSearch?: boolean, reasoning?: boolean}} ChatRequest */
 /** @typedef {{role: string, content: string, thinking?: string, sources?: WebSource[]}} ChatMessage */
 
-export function createWebSearchToggle(button) {
+export function createWebSearchToggle(button, storage = globalThis.localStorage) {
+    const key = "krishd-web-search-enabled";
     let enabled = true;
+    try { enabled = storage?.getItem(key) !== "false"; } catch { /* Storage may be unavailable. */ }
     const render = () => {
         button.setAttribute("aria-pressed", String(enabled));
-        button.title = enabled ? "Automatic web search on - click to disable" : "Web search off - click to enable";
+        button.title = enabled ? "Web search allowed. The assistant searches when useful. Click to turn off."
+            : "Web search off. Click to allow the assistant to search when useful.";
         button.setAttribute("aria-label", button.title);
     };
     button.addEventListener("click", () => {
         enabled = !enabled;
+        try { storage?.setItem(key, String(enabled)); } catch { /* Keep this session's choice. */ }
         render();
     });
     render();
@@ -28,7 +32,7 @@ export function appendSources(container, sources) {
     section.setAttribute("aria-label", "Sources");
     const heading = document.createElement("div");
     heading.className = "msg-sources-heading";
-    heading.textContent = "Sources";
+    heading.textContent = "Used web results · Sources";
     section.appendChild(heading);
     sources.slice(0, 5).forEach((source, index) => {
         let url;