Add cap sprite to child scene and update project configuration

addons/guide/editor/action_slot/action_slot.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=2 format=3 uid="uid://du4x7ng6ntuk4"]
+
+[ext_resource type="Script" path="res://addons/guide/editor/action_slot/action_slot.gd" id="1_w5nxd"]
+
+[node name="ActionSlot" type="LineEdit"]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+size_flags_horizontal = 3
+size_flags_vertical = 0
+text = "Name"
+editable = false
+selecting_enabled = false
+script = ExtResource("1_w5nxd")