Restructure loading of game

Zennysoft.Game.Ma/src/app/App.tscn

@@ -1,10 +1,49 @@
-[gd_scene load_steps=3 format=3 uid="uid://cagfc5ridmteu"]
+[gd_scene load_steps=5 format=3 uid="uid://cagfc5ridmteu"]
 
 [ext_resource type="Script" uid="uid://d1f8blk5ucqvq" path="res://src/app/App.cs" id="1_rt73h"]
-[ext_resource type="PackedScene" uid="uid://33ek675mfb5n" path="res://src/game/Game.tscn" id="2_1uiag"]
+[ext_resource type="PackedScene" uid="uid://rfvnddfqufho" path="res://src/menu/MainMenu.tscn" id="2_1uiag"]
+[ext_resource type="FontFile" uid="uid://cm8j5vcdop5x0" path="res://src/ui/fonts/Mrs-Eaves-OT-Roman_31443.ttf" id="2_3st5l"]
+
+[sub_resource type="LabelSettings" id="LabelSettings_v0mgf"]
+font = ExtResource("2_3st5l")
+font_size = 100
+font_color = Color(0.737255, 0.705882, 0.690196, 1)
 
 [node name="App" type="Node"]
 process_mode = 3
 script = ExtResource("1_rt73h")
 
-[node name="Game" parent="." instance=ExtResource("2_1uiag")]
+[node name="Loading" type="Control" parent="."]
+unique_name_in_owner = true
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="ColorRect" type="ColorRect" parent="Loading"]
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+color = Color(0.137255, 0.121569, 0.12549, 1)
+
+[node name="CenterContainer" type="CenterContainer" parent="Loading"]
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="Label" type="Label" parent="Loading/CenterContainer"]
+layout_mode = 2
+text = "Loading..."
+label_settings = SubResource("LabelSettings_v0mgf")
+
+[node name="MainMenu" parent="." instance=ExtResource("2_1uiag")]
+unique_name_in_owner = true
+visible = false