fix and bringing to a unified style warnings of server loading logs to be more visible at server startup (#10970)

src/server/game/Weather/WeatherMgr.cpp

@@ -96,7 +96,7 @@ namespace WeatherMgr
 
         if (!result)
         {
-            LOG_ERROR("sql.sql", ">> Loaded 0 weather definitions. DB table `game_weather` is empty.");
+            LOG_WARN("server.loading", ">> Loaded 0 weather definitions. DB table `game_weather` is empty.");
             LOG_INFO("server.loading", " ");
             return;
         }