Fix order note when no user was given

src/components/Timeline/TimelineNote.tsx

@@ -79,14 +79,16 @@ export const TimelineNote: React.FC<TimelineNoteProps> = props => {
 
   return (
     <div className={classes.root}>
-      <Avatar
-        className={classes.avatar}
-        style={{ background: palette[CRC.str(user.email) % palette.length] }}
-      >
-        <PersonIcon />
-      </Avatar>
+      {user && (
+        <Avatar
+          className={classes.avatar}
+          style={{ background: palette[CRC.str(user.email) % palette.length] }}
+        >
+          <PersonIcon />
+        </Avatar>
+      )}
       <div className={classes.title}>
-        <Typography>{user.email}</Typography>
+        <Typography>{user?.email}</Typography>
         <Typography>
           <DateTime date={date} />
         </Typography>

src/orders/fixtures.ts

@@ -825,6 +825,30 @@ export const order = (placeholder: string): OrderDetails_order => ({
         email: "admin@example.com",
         id: "QWRkcmVzczoxNQ=="
       }
+    },
+    {
+      __typename: "OrderEvent",
+      amount: null,
+      date: "2019-09-17T13:22:24.376193+00:00",
+      email: null,
+      emailType: null,
+      id: "T3JkZXJFdmVudDo0",
+      message: "This is note",
+      quantity: null,
+      type: OrderEventsEnum.NOTE_ADDED,
+      user: null
+    },
+    {
+      __typename: "OrderEvent",
+      amount: null,
+      date: "2019-09-17T13:22:24.376193+00:00",
+      email: null,
+      emailType: null,
+      id: "T3JkZXJFdmVudDo1",
+      message: "This is note",
+      quantity: null,
+      type: OrderEventsEnum.NOTE_ADDED,
+      user: null
     }
   ],
   fulfillments: [