Fix a small regression

Karts that should be unlocked in Story Mode were not properly locked. The regression was introduced in 32c5ac0, because the kart information was loaded after the UnlockManager. Moving the kart loading back before fixes the issue.

Author: Alayan-stk-2

src/main.cpp

@@ -2383,6 +2383,14 @@ int main(int argc, char *argv[])
         else
             main_loop = new MainLoop(0/*parent_pid*/);
 
+        // Set of loading steps common between the first game launch and
+        // reloading to apply a new resolution.
+        irr_driver->commonInit();
+
+        OfficialKarts::load();
+        handleXmasMode();
+        handleEasterEarMode();
+
         // Needs the kart and track directories to load potential challenges
         // in those dirs, so it can only be created after reading tracks
         // and karts.
@@ -2397,14 +2405,6 @@ int main(int argc, char *argv[])
         GUIEngine::addLoadingIcon( irr_driver->getTexture(FileManager::GUI_ICON,
                                                           "gui_lock.png"  ) );
 
-        // Set of loading steps common between the first game launch and
-        // reloading to apply a new resolution.
-        irr_driver->commonInit();
-
-        OfficialKarts::load();
-        handleXmasMode();
-        handleEasterEarMode();
-
         //handleCmdLine() needs InitTuxkart() so it can't be called first
         if (!handleCmdLine(!server_config.empty(), has_parent_process))
             exit(0);