Refactor magvisualizer (#8568)

Content.Client/Weapons/Ranged/Components/MagazineVisualsComponent.cs

@@ -0,0 +1,33 @@
+using Content.Client.Weapons.Ranged.Systems;
+
+namespace Content.Client.Weapons.Ranged.Components;
+
+/// <summary>
+/// Visualizer for gun mag presence; can change states based on ammo count or toggle visibility entirely.
+/// </summary>
+[RegisterComponent, Friend(typeof(GunSystem))]
+public sealed class MagazineVisualsComponent : Component
+{
+    /// <summary>
+    /// What RsiState we use.
+    /// </summary>
+    [DataField("magState")] public string? MagState;
+
+    /// <summary>
+    /// How many steps there are
+    /// </summary>
+    [DataField("steps")] public int MagSteps;
+
+    /// <summary>
+    /// Should we hide when the count is 0
+    /// </summary>
+    [DataField("zeroVisible")] public bool ZeroVisible;
+}
+
+public enum GunVisualLayers : byte
+{
+    Base,
+    BaseUnshaded,
+    Mag,
+    MagUnshaded,
+}