Various Paper adjustments (#3993)

* Various Paper adjustments

+ can now have prefilled text
+ cleaned up paper sprite layering a bit,
+ adds an AME manual as a test but doesn't put it anywhere
+ Paper cannot write arbitrary Examine markup

* Paper component doesn't show text on examine anymore

Content.Server/GameObjects/Components/Paper/PaperComponent.cs

@@ -7,7 +7,9 @@ using Content.Shared.GameObjects.EntitySystems;
 using Content.Shared.Interfaces.GameObjects.Components;
 using Robust.Server.GameObjects;
 using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization.Manager.Attributes;
 using Robust.Shared.Utility;
+using Robust.Shared.Localization;
 using Robust.Shared.ViewVariables;
 
 namespace Content.Server.GameObjects.Components.Paper
@@ -16,6 +18,7 @@ namespace Content.Server.GameObjects.Components.Paper
     public class PaperComponent : SharedPaperComponent, IExamine, IInteractUsing, IUse
     {
         private PaperAction _mode;
+        [DataField("content")]
         public string Content { get; private set; } = "";
 
         [ViewVariables] private BoundUserInterface? UserInterface => Owner.GetUIOrNull(PaperUiKey.Key);
@@ -41,8 +44,14 @@ namespace Content.Server.GameObjects.Components.Paper
         {
             if (!inDetailsRange)
                 return;
+            if (Content == "")
+                return;
 
-            message.AddMarkup(Content);
+            message.AddMarkup(
+                Loc.GetString(
+                    "paper-component-examine-detail-has-words"
+                )
+            );
         }
 
         bool IUse.UseEntity(UseEntityEventArgs eventArgs)
@@ -66,7 +75,7 @@ namespace Content.Server.GameObjects.Components.Paper
 
             if (Owner.TryGetComponent(out SpriteComponent? sprite))
             {
-                sprite.LayerSetState(1, "paper_words");
+                sprite.LayerSetState(0, "paper_words");
             }
 
             Owner.Description = "";