add gamepad support to menus

examples/LanguageSelectorExample.tscn

@@ -0,0 +1,58 @@
+[gd_scene load_steps=3 format=3 uid="uid://bm3x8y4h9l2kv"]
+
+[ext_resource type="Script" path="res://examples/LanguageSelectorExample.gd" id="1_example"]
+[ext_resource type="PackedScene" path="res://scenes/ui/components/LanguageSelector.tscn" id="2_language_selector"]
+
+[node name="LanguageSelectorExample" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_example")
+
+[node name="VBoxContainer" type="VBoxContainer" parent="."]
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -20.0
+offset_top = -20.0
+offset_right = 20.0
+offset_bottom = 20.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="Title" type="Label" parent="VBoxContainer"]
+layout_mode = 2
+text = "Language Selector Component Example"
+horizontal_alignment = 1
+
+[node name="HSeparator" type="HSeparator" parent="VBoxContainer"]
+layout_mode = 2
+
+[node name="LanguageContainer" type="HBoxContainer" parent="VBoxContainer"]
+layout_mode = 2
+
+[node name="LanguageLabel" type="Label" parent="VBoxContainer/LanguageContainer"]
+custom_minimum_size = Vector2(150, 0)
+layout_mode = 2
+text = "Language:"
+
+[node name="LanguageSelector" parent="VBoxContainer/LanguageContainer" instance=ExtResource("2_language_selector")]
+layout_mode = 2
+
+[node name="HSeparator2" type="HSeparator" parent="VBoxContainer"]
+layout_mode = 2
+
+[node name="Instructions" type="Label" parent="VBoxContainer"]
+layout_mode = 2
+text = "• Click arrow buttons with mouse
+• Use keyboard/gamepad navigation with left/right
+• Component is fully reusable in any scene"
+horizontal_alignment = 1
+
+[connection signal="language_changed" from="VBoxContainer/LanguageContainer/LanguageSelector" to="." method="_on_language_changed"]