some ui improvements

hero_select_card.gd

@@ -0,0 +1,15 @@
+extends PanelContainer
+
+signal pressed(hero_class)
+
+var hero_class: HeroClass
+
+
+func set_hero(hero: HeroClass):
+	hero_class = hero
+	$VBoxContainer/Label.text = hero.hero_name
+	$VBoxContainer/TextureRect.texture = hero.texture
+
+
+func _on_button_pressed() -> void:
+	pressed.emit(hero_class)