Added pressed state to input clear so it clears everything (#4410)

# Objective

Adds `pressed` state to Input::clear(). Fixes #3383

crates/bevy_input/src/input.rs

@@ -116,10 +116,11 @@ where
         self.just_released.remove(&input);
     }
 
-    /// Clear just pressed and just released information.
+    /// Clear pressed, just pressed and just released information.
     pub fn clear(&mut self) {
         self.just_pressed.clear();
         self.just_released.clear();
+        self.pressed.clear();
     }
 
     /// List all inputs that are pressed.
@@ -166,16 +167,20 @@ mod test {
         assert!(input.pressed(DummyInput::Input1));
         assert!(input.pressed(DummyInput::Input2));
 
-        // Clear the `input`, removing just pressed and just released
+        // Clear the `input`, removing pressed, just pressed and just released
         input.clear();
 
         // Check if they're marked "just pressed"
         assert!(!input.just_pressed(DummyInput::Input1));
         assert!(!input.just_pressed(DummyInput::Input2));
 
         // Check if they're marked as pressed
-        assert!(input.pressed(DummyInput::Input1));
-        assert!(input.pressed(DummyInput::Input2));
+        assert!(!input.pressed(DummyInput::Input1));
+        assert!(!input.pressed(DummyInput::Input2));
+
+        // Test pressing
+        input.press(DummyInput::Input1);
+        input.press(DummyInput::Input2);
 
         // Release the inputs and check state