store sockets in a map so controller can access them

srcs/requirements/svelte/api_front/public/build/bundle.js

@@ -3901,7 +3901,6 @@ var app = (function () {
         });
         let data = await response.json();
         console.log(data.message);
-        socket$1.emit('join', room_name);
     }
     async function change_room(room_name) {
         console.log("in change_room");
@@ -3916,7 +3915,6 @@ var app = (function () {
         let data = await response.json();
         console.log(data.message);
         await get_room_messages();
-        socket$1.emit('change', room_name);
         current_room_name.set(room_name);
         layout.set("room");
     }