When Scroll on input is enabled, tabby will also scroll to end when lost force(with no input)

[yyjdelete]

Describe the problem:
[A clear and concise description of what the bug is.]
When Scroll on input is enabled, tabby will also scroll to end when lost force(with no input)
Tested with Tabby 1.0.215 + win11(24H2)

To Reproduce:

1. Enable Settings/Terminal/Scroll on input(Scrolls the terminal to the bottom on user input)
2. open an new terminal, and press Enter until the output is more than a screen
3. scroll to the head, and switch to another program;
4. Switch back to tabby, and see it's already scroll to the end