implemented ending call functionality

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

client/src/service/peer.js

@@ -13,13 +13,13 @@ class PeerService {
     }
 
     setLocalDescription = async (ans) => {
-        if(this.peer){
+        if (this.peer) {
             await this.peer.setRemoteDescription(new RTCSessionDescription(ans));
         }
     }
 
     getAnswer = async (offer) => {
-        if(this.peer){
+        if (this.peer) {
             await this.peer.setRemoteDescription(offer);
             const ans = await this.peer.createAnswer();
             await this.peer.setLocalDescription(new RTCSessionDescription(ans));