Update Exec value in .desktop file

dist/org.suyu_emu.suyu.desktop

@@ -8,8 +8,8 @@ Name=suyu
 GenericName=Switch Emulator
 Comment=Nintendo Switch video game console emulator
 Icon=org.suyu_emu.suyu
-TryExec=yuzu
-Exec=yuzu %f
+TryExec=suyu
+Exec=suyu %f
 Categories=Game;Emulator;Qt;
 MimeType=application/x-nx-nro;application/x-nx-nso;application/x-nx-nsp;application/x-nx-xci;
 Keywords=Nintendo;Switch;