Gravity Generators cannot be unanchored while active (#41256)

* Add unanchor attempt check

* Combine shared component and server component

- Combines SharedGravityGeneratorComponent and GravityGeneratorComponent
- AutoNetworked the GravityActiveBool

* Remove SharedGravityGeneratorComponent

* Update to SharedGravityGeneratorComponent

* Fix to be a complete sentence

* Dirty GravityActive whenever changed

* Rename component and remove view variables

* Update referenced component name

* Move unanchor attempt to shared system

* Add client system

* Revert popup to PopupEntity

* Fix popup to be PopupClient

* Set access restriction on GravityActive

Content.Shared/Gravity/GravityGeneratorComponent.cs

@@ -0,0 +1,47 @@
+using Content.Shared.Power;
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Gravity;
+
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+public sealed partial class GravityGeneratorComponent : Component
+{
+    [DataField] public float LightRadiusMin { get; set; }
+    [DataField] public float LightRadiusMax { get; set; }
+
+    /// <summary>
+    /// A map of the sprites used by the gravity generator given its status.
+    /// </summary>
+    [DataField, Access(typeof(SharedGravitySystem))]
+    public Dictionary<PowerChargeStatus, string> SpriteMap = [];
+
+    /// <summary>
+    /// The sprite used by the core of the gravity generator when the gravity generator is starting up.
+    /// </summary>
+    [DataField]
+    public string CoreStartupState = "startup";
+
+    /// <summary>
+    /// The sprite used by the core of the gravity generator when the gravity generator is idle.
+    /// </summary>
+    [DataField]
+    public string CoreIdleState = "idle";
+
+    /// <summary>
+    /// The sprite used by the core of the gravity generator when the gravity generator is activating.
+    /// </summary>
+    [DataField]
+    public string CoreActivatingState = "activating";
+
+    /// <summary>
+    /// The sprite used by the core of the gravity generator when the gravity generator is active.
+    /// </summary>
+    [DataField]
+    public string CoreActivatedState = "activated";
+
+    /// <summary>
+    /// Is the gravity generator currently "producing" gravity?
+    /// </summary>
+    [DataField, AutoNetworkedField, Access(typeof(SharedGravityGeneratorSystem))]
+    public bool GravityActive = false;
+}