Closing no longer repeats

Closes #108

Turns out there was a property on KeyEvent this whole time... oops.

CHANGELOG.md

@@ -71,6 +71,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   `IntoDynamic<Progress>`. In general, this should not cause any code breakages
   unless the traits were being used in generics.
 - `Space` now honors `ConstraintLimit::Fill` in its layout.
+- When handling the Ctrl/Cmd+W shortcut to close windows, repeat keys are now
+  ignored.
 
 ### Changed
 

src/window.rs

@@ -999,7 +999,10 @@ where
     {
         match input.logical_key {
             Key::Character(ch) if ch == "w" && window.modifiers().primary() => {
-                if input.state.is_pressed() && self.behavior.close_requested(window) {
+                if !input.repeat
+                    && input.state.is_pressed()
+                    && self.behavior.close_requested(window)
+                {
                     self.should_close = true;
                     window.set_needs_redraw();
                 }