Redesign and reimplement inventory menu

Add jewels but no implementation yet (needed redesign of inventory menu to function correctly)

Zennysoft.Game.Ma/src/items/jewels/resources/OssifiedCortex.tres

@@ -0,0 +1,27 @@
+[gd_resource type="Resource" script_class="JewelStats" load_steps=3 format=3 uid="uid://bdd7xh6v03xul"]
+
+[ext_resource type="Script" uid="uid://btikba31yb0tl" path="res://src/items/jewels/JewelStats.cs" id="1_75k4l"]
+[ext_resource type="Texture2D" uid="uid://bxa1kqlqhbyi3" path="res://src/items/jewels/texture/Ossified Cortex.png" id="1_cq6jp"]
+
+[resource]
+script = ExtResource("1_75k4l")
+Name = "Ossified Cortex"
+Description = ""
+SpawnRate = 0.5
+BonusAttack = 0
+BonusDefense = 0
+BonusLuck = 5
+BonusHP = 0
+BonusVT = 0
+AeolicResistance = 0
+TelluricResistance = 0
+HydricResistance = 0
+IgneousResistance = 0
+FerrumResistance = 0
+HolyResistance = 0
+CurseResistance = 0
+ThrowSpeed = 12.0
+ThrowDamage = 5
+ItemTag = 0
+Texture = ExtResource("1_cq6jp")
+metadata/_custom_type_script = "uid://btikba31yb0tl"