fix: toast to snackbar

Author: GOVINDDIXIT

app/src/main/res/layout/fragment_attendee.xml

@@ -10,7 +10,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content">
 
-    <LinearLayout
+      <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:background="@android:color/white"
@@ -451,6 +451,6 @@
             android:layout_gravity="center"
             android:elevation="@dimen/card_elevation"
             android:visibility="gone" />
-    </LinearLayout>
+      </LinearLayout>
     </androidx.coordinatorlayout.widget.CoordinatorLayout>
 </androidx.core.widget.NestedScrollView>