feat: set proper page title for chats rooms

lib/slax_web/components/layouts/root.html.heex

@@ -4,7 +4,7 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="csrf-token" content={get_csrf_token()} />
-    <.live_title suffix=" · Phoenix Framework">
+    <.live_title suffix=" · Slax">
       <%= assigns[:page_title] || "Slax" %>
     </.live_title>
     <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />

lib/slax_web/live/chat_room_live.ex

@@ -58,7 +58,7 @@ defmodule SlaxWeb.ChatRoomLive do
           Chat.get_first_room!()
       end
 
-    {:noreply, assign(socket, hide_topic?: false, room: room)}
+    {:noreply, assign(socket, hide_topic?: false, page_title: "# #{room.name}", room: room)}
   end
 
   @impl Phoenix.LiveView