implemented ending call functionality

Signed-off-by: heyhiru <hirentimbadiya74@gmail.com>

server/index.js

@@ -40,4 +40,11 @@ io.on("connection", (socket) => {
         io.to(to).emit("peer:nego:final", { from: socket.id, ans });
     });
 
+    socket.on("call:end", ({ to }) => {
+        io.to(to).emit("call:end", { from: socket.id });
+    });
+
+    socket.on("call:initiated", ({ to }) => {
+        io.to(to).emit("call:initiated", { from: socket.id });
+    });
 })