Task complete notice

[patricksun2807]

I have a lot of issues to go through, so in order to make it easier for me to help you, I ask that you please try these things first

• [X] Check out all the menus and keyboard shortcuts. Maybe the feature already exists?
• [X] Try with the newest version from GitHub
• [X] Read all the documentation at https://github.com/mifi/lossless-cut to see if the feature already exists
• [X] See if someone already suggested this under Issues or Discussions

Description

Hope add notification when tasks complete in next version Notice.txt .

[mifi]

please explain what you mean by that