feat(weather): show trend indicators on team averages

src/app/weather/[id]/page.tsx

@@ -40,6 +40,16 @@ export default async function WeatherSessionPage({ params }: WeatherSessionPageP
     getUserTeams(authSession.user.id),
     getWeatherSessionsHistory(authSession.user.id),
   ]);
+  const currentHistoryIndex = history.findIndex((point) => point.sessionId === session.id);
+  const previousTeamAverages =
+    currentHistoryIndex > 0
+      ? {
+          performance: history[currentHistoryIndex - 1].performance,
+          moral: history[currentHistoryIndex - 1].moral,
+          flux: history[currentHistoryIndex - 1].flux,
+          valueCreation: history[currentHistoryIndex - 1].valueCreation,
+        }
+      : null;
 
   return (
     <main className="mx-auto max-w-7xl px-4">
@@ -70,7 +80,7 @@ export default async function WeatherSessionPage({ params }: WeatherSessionPageP
         canEdit={session.canEdit}
         userTeams={userTeams}
       >
-        <WeatherAverageBar entries={session.entries} />
+        <WeatherAverageBar entries={session.entries} previousAverages={previousTeamAverages} />
         <WeatherBoard
           sessionId={session.id}
           currentUserId={authSession.user.id}