client: added player hand and animation for added cards

cards/card_manager.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=63 format=3 uid="uid://hr727kw8y2hb"]
+[gd_scene load_steps=64 format=3 uid="uid://hr727kw8y2hb"]
 
 [ext_resource type="Script" uid="uid://c5yx2hpj6lifp" path="res://cards/card_manager.gd" id="1_de166"]
 [ext_resource type="Script" uid="uid://dx4cl2rk0a8a0" path="res://cards/card.gd" id="2_vmpa3"]
+[ext_resource type="Texture2D" uid="uid://i0wpcxpk7g2c" path="res://cards/textures/front_test.webp" id="3_hq606"]
 
 [sub_resource type="Resource" id="Resource_hq606"]
 script = ExtResource("2_vmpa3")
@@ -548,3 +549,4 @@ full_deck = Dictionary[int, ExtResource("2_vmpa3")]({
 58: SubResource("Resource_slqcy"),
 59: SubResource("Resource_rxi2e")
 })
+card_fallback_texture = ExtResource("3_hq606")