Prevent `TextEdit` widgets from sending fake primary clicks (#4751)

<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
before opening a Pull Request!

* Keep your PR:s small and focused.
* The PR title is what ends up in the changelog, so make it descriptive!
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
`egui_demo_lib`, or a new example.
* Do NOT open PR:s from your `master` branch, as that makes it hard for
maintainers to test and add commits to your PR.
* Remember to run `cargo fmt` and `cargo clippy`.
* Open the PR as a draft until you have self-reviewed it and run
`./scripts/check.sh`.
* When you have addressed a PR comment, mark it as resolved.

Please be patient! I will review your PR, but my time is limited!
-->

This prevents TextEdit widgets from sending fake primary clicks when a
user types Space / Enter. Small change but having Space / Enter send
`OutputEvent::ValueChanged` instead of `OutputEvent::Clicked` makes more
sense I believe.

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>

crates/egui/src/widgets/text_edit/builder.rs

@@ -539,6 +539,9 @@ impl<'t> TextEdit<'t> {
             Sense::hover()
         };
         let mut response = ui.interact(outer_rect, id, sense);
+
+        response.fake_primary_click = false; // Don't sent `OutputEvent::Clicked` when a user presses the space bar
+
         let text_clip_rect = rect;
         let painter = ui.painter_at(text_clip_rect.expand(1.0)); // expand to avoid clipping cursor