yuzu: Various frontend improvements to avoid crashes and improve experience on Linux.

src/yuzu_cmd/emu_window/emu_window_sdl2.h

@@ -32,6 +32,9 @@ public:
     /// Wait for the next event on the main thread.
     void WaitEvent();
 
+    // Sets the window icon from yuzu.bmp
+    void SetWindowIcon();
+
 protected:
     /// Called by WaitEvent when a key is pressed or released.
     void OnKeyEvent(int key, u8 state);