Hitting enter in find widget input box cycles through matches backwards

[joyceerhl]

Testing #148060

In a regular text editor, type a query into the find widget and hit enter. Each enter will move the selection forward to the next match.

In the terminal, hitting enter scrolls backward through the terminal output. Additionally, the find widget's <> of <> text does not update to reflect which selection is currently highlighted.

[meganrogge]

This is not new behavior - find previous was called prior to this work when enter is pressed. I believe the reason for this is that we assume people are at the last part of the buffer and therefore want to see the prior result instead of next, which would wrap all the way to the start.

[meganrogge]

Can repro the label not updating and that's covered by #148136