Let text inputs handle printable key events before our custom input system (#6880)

* Let text inputs handle printable key events

* Explain text input shortcut bypass

* Add clarification comment on why focus owner check is implemented

---------

Co-authored-by: Henri Hyyryläinen <henri.hyyrylainen@gmail.com>

Author: RyuDanuer

src/engine/input/InputManager.cs

@@ -358,6 +358,9 @@ public override void _Input(InputEvent @event)
         if (PerformingRebind)
             return;
 
+        if (FocusedTextInputShouldHandle(@event))
+            return;
+
         OnInput(false, @event);
     }
 
@@ -479,6 +482,19 @@ private static void PrintConsumeAttemptDelayedError(MethodBase method)
             method.DeclaringType?.Name ?? "global", ".", method.Name);
     }
 
+    private bool FocusedTextInputShouldHandle(InputEvent @event)
+    {
+        if (@event is not InputEventKey { Pressed: true } keyEvent)
+            return false;
+
+        if (keyEvent.Unicode < ' ')
+            return false;
+
+        // Let focused text fields handle printable keys first, so layout-specific typing is not consumed as a shortcut.
+        // See: https://github.com/Revolutionary-Games/Thrive/issues/3031
+        return GetViewport().GuiGetFocusOwner() is LineEdit or TextEdit;
+    }
+
     /// <summary>
     ///   Performs post load actions for inputs. For example some inputs need to listen for settings changes
     /// </summary>