Merge pull request #5961 from edward-jazzhands-forks/fix_Input_widget_documentation

Update Input widget documentation

Author: willmcgugan

docs/widgets/input.md

@@ -78,8 +78,7 @@ input = Input(validate_on=["submitted"])
 
 Validation is considered to have failed if *any* of the validators fail.
 
-You can check whether the validation succeeded or failed inside an [Input.Changed][textual.widgets.Input.Changed] or
-[Input.Submitted][textual.widgets.Input.Submitted] handler by looking at the `validation_result` attribute on these events.
+You can check whether the validation succeeded or failed inside an [Input.Changed][textual.widgets.Input.Changed], [Input.Submitted][textual.widgets.Input.Submitted], or [Input.Blurred][textual.widgets.Input.Blurred] handler by looking at the `validation_result` attribute on these events.
 
 In the example below, we show how to combine multiple validators and update the UI to tell the user
 why validation failed.
@@ -132,6 +131,7 @@ If you set `valid_empty=True` then empty values will bypass any validators, and
 
 ## Messages
 
+- [Input.Blurred][textual.widgets.Input.Blurred]
 - [Input.Changed][textual.widgets.Input.Changed]
 - [Input.Submitted][textual.widgets.Input.Submitted]