Make the info panel show the correct last alerting

Before, it was checking against the moved pointer, which could cause inaccurate

token_bot/history_manager/update_trigger.py

@@ -10,6 +10,7 @@ class UpdateTrigger:
     def __init__(self, alert: Alert):
         self._alert : Alert = alert
         self._last_trigger : Tuple[datetime.datetime, int] | None = None
+        self._last_alerting: Tuple[datetime.datetime, int] | None = None
         self._squelched : bool = False
 
     @property
@@ -20,6 +21,9 @@ class UpdateTrigger:
     def last_trigger(self) -> Tuple[datetime.datetime, int] | None:
         return self._last_trigger
 
+    def last_alerting(self) -> Tuple[datetime.datetime, int] | None:
+        return self._last_alerting
+
     def _find_next_trigger(self, comparison_operator: operator, starting_point: datetime.datetime, history: List[Tuple[datetime.datetime, int]]):
         candidate_datum : Tuple[datetime.datetime, int] | None = None
         for datum in history:
@@ -78,6 +82,7 @@ class UpdateTrigger:
         if new_datum[0] > now - time_range:
             if self._last_trigger is None:
                 self._last_trigger = new_datum
+                self._last_alerting = new_datum
                 return True
 
             # If the self._last_trigger falls out of scope of the alert, find the next thing that would have triggered
@@ -88,6 +93,7 @@ class UpdateTrigger:
 
             if comparison_operator(new_datum[1], self._last_trigger[1]):
                 self._last_trigger = new_datum
+                self._last_alerting = new_datum
                 was_squelched = self._squelched
                 self._squelched = True
                 return not was_squelched