renderer: asynchronously load background tex (#11749)

Bumps required hyprgraphics to 0.1.6

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Co-authored-by: Mihai Fufezan <mihai@fufexan.net>

src/managers/eventLoop/EventLoopManager.hpp

@@ -99,6 +99,7 @@ class CEventLoopManager {
     wl_event_source* m_configWatcherInotifySource = nullptr;
 
     friend class CAsyncDialogBox;
+    friend class CMainLoopExecutor;
 };
 
 inline UP<CEventLoopManager> g_pEventLoopManager;