Do not update query field to ever chat message

It doesn't work as well with chat, unlike for search page
Use more appropriate thinking face emoji for you instead of surprise face

src/interface/web/chat.html

@@ -15,12 +15,6 @@
             window.history.pushState({}, "", url.href);
         }
 
-        function setQueryFieldInUrl(query) {
-            let url = new URL(window.location.href);
-            url.searchParams.set("q", query);
-            window.history.pushState({}, "", url.href);
-        }
-
         function formatDate(date) {
             // Format date in HH:MM, DD MMM YYYY format
             let time_string = date.toLocaleTimeString('en-IN', { hour: '2-digit', minute: '2-digit', hour12: false });
@@ -30,7 +24,7 @@
 
         function renderMessage(message, by, dt=null) {
             let message_time = formatDate(dt ?? new Date());
-            let by_name =  by == "khoj" ? "🦅 Khoj" : "😲 You";
+            let by_name =  by == "khoj" ? "🦅 Khoj" : "🤔 You";
             // Generate HTML for Chat Message and Append to Chat Body
             document.getElementById("chat-body").innerHTML += `
                 <div data-meta="${by_name} at ${message_time}" class="chat-message ${by}">
@@ -51,9 +45,6 @@
             if (query.length === 0)
                 return;
 
-            // Set query field in url query param
-            setQueryFieldInUrl(query);
-
             // Add message by user to chat body
             renderMessage(query, "you");
             document.getElementById("chat-input").value = "";