Add fap icon

Signed-off-by: Kowalski Dragon (kowalski7cc) <kowalski7cc@users.noreply.github.com>

application.fam

@@ -8,6 +8,7 @@ App(
         "gui",
         "dialogs",
     ],
+    fap_icon="phone.png",
     stack_size=8 * 1024,
     order=20,
 )