Fix user search parser

src/experimental/parser/timeline.nim

@@ -15,7 +15,9 @@ proc parseUsers*(json: string; after=""): Result[User] =
   if raw.timeline.instructions.len == 0:
     return
 
-  for e in raw.timeline.instructions[0].addEntries.entries:
+  for i in raw.timeline.instructions:
+    if i.addEntries.entries.len > 0:
+      for e in i.addEntries.entries:
         let id = e.entryId.getId
         if e.entryId.startsWith("user"):
          if id in raw.globalObjects.users: