Respect animation blacklist when updating

[fengwk]

I wish to disable the animation effects of the fcitx input method because the experience of having a shaking animation every time a character is entered is not pleasant. When I added "class_g = 'fcitx'" to animation-open-exclude, I noticed that it did not take effect during updates. Therefore, I made this modification. There might be a better solution, but I am not familiar with this project, so I made the minimal changes.