ObjectControl: Trigger not found if Action not prefixed with start_ in xosc file

[ceciliahernqvist]

Describe the bug
Delayed start for an object does not work unless actionName for an object is prefixed with "start_", e.g.
<Action name="2,start_follow_trajectory">

To Reproduce
Steps to reproduce the behavior:

1. Open a scenariofile with a scenario where an actors movement should be triggered by another actor in the scenario.
2. Go to ManouverGroup for the triggered actor ID, at the row for
   <Action name="ActorObjectID,Action">
   make sure "Action" does not contain the prefix "start_"
3. Run scenario with ATOS.
4. Note that the output will state that no trigger where found for the specified actor, e.g.:
   [object_control-3] [INFO] [1719314506.627170743] [atos.object_control]: Got trigger start for object 2: 0

Expected behavior
Would like ATOS to be able to handle triggers without a specific prefix, or otherwise output a warning message or something about not handling triggers without "start_" prefix.

Screenshots

Additional context
Same issue occurs if there happens to be a space in between ActorObjectID, and Action, e.g.
<Action name="2, start_follow_trajectory">
instead of
<Action name="2,start_follow_trajectory">