Add `LineText::limit()`

[zhiburt]

Currently we can't limit the string size from the end.
We can only manually by truncating it at the point of the call.
Which is not convenient.

The issue is to add such a method.
So we could not go over a set number of characters.

It's not a complex issue.
To figure it out checkout LineText.

https://docs.rs/tabled/latest/tabled/settings/style/struct.LineText.html