Allow fire extinguishers and sprays to push grids you are standing on (#31754)

* allow fire extinguishers and sprays to push grids

* add cvar and reduce pushback

* EmoGarbage Review - Resolve Conflicts

* Ensure grid parenting

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Co-authored-by: EmoGarbage404 <retron404@gmail.com>

Content.Server/Fluids/Components/SprayComponent.cs

@@ -32,10 +32,10 @@ public sealed partial class SprayComponent : Component
     /// <summary>
     /// How much the player is pushed back for each spray.
     /// </summary>
-    [ViewVariables(VVAccess.ReadWrite), DataField]
-    public float PushbackAmount = 2f;
+    [DataField]
+    public float PushbackAmount = 5f;
 
-    [ViewVariables(VVAccess.ReadWrite), DataField(required: true)]
+    [DataField(required: true)]
     [Access(typeof(SpraySystem), Other = AccessPermissions.ReadExecute)] // FIXME Friends
     public SoundSpecifier SpraySound { get; private set; } = default!;
 }