TikTok Download Buttons

After installing this addon, there will be download buttons on every TikTok video, allowing for easy downloading of videos. This addon has support for attempting to download non-watermarked videos. In cases where this doesn't work or the user decides not to use it, it'll download the regular, watermarked videos instead. Please keep in mind that TikTok's website is being updated fairly regularly, therefore the addon may not work all the time, but keeping it updated is a priority as long as I have time.