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

src/yuzu_cmd/emu_window/emu_window_sdl2_gl.cpp

@@ -107,6 +107,8 @@ EmuWindow_SDL2_GL::EmuWindow_SDL2_GL(InputCommon::InputSubsystem* input_subsyste
     dummy_window = SDL_CreateWindow(NULL, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0,
                                     SDL_WINDOW_HIDDEN | SDL_WINDOW_OPENGL);
 
+    SetWindowIcon();
+
     if (fullscreen) {
         Fullscreen();
     }