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

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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