TextEditor is not showing last line when using Ctrl+End key

[kkoreilly]

Discussed in https://github.com/cogentcore/core/discussions/1393

^{Originally posted by heejit December 23, 2024} Pressing Ctrl+End key not showing last line you have to use mouse to scroll then only it will show the last line.

[kkoreilly]

Another potentially related issue (discussed in https://github.com/cogentcore/core/discussions/1418#discussioncomment-11750891) is that the process of a text editor automatically expanding when you add new lines also often fails to show the last line properly; it might be going through the same functions as the original issue.

[rcoreilly]

I believe this is all fixed now. reopen if not.