Add reagent sources to the guidebook (#22627)

* source in my guidebook

* finish it!

* sir yes sir oorah

* network that bitch, baby

Content.Server/Kitchen/Components/ExtractableComponent.cs

@@ -1,19 +0,0 @@
-using Content.Server.Kitchen.EntitySystems;
-using Content.Shared.Chemistry.Components;
-
-namespace Content.Server.Kitchen.Components
-{
-    /// <summary>
-    /// Tag component that denotes an entity as Extractable
-    /// </summary>
-    [RegisterComponent]
-    [Access(typeof(ReagentGrinderSystem))]
-    public sealed partial class ExtractableComponent : Component
-    {
-        [DataField("juiceSolution")]
-        public Solution? JuiceSolution;
-
-        [DataField("grindableSolutionName")]
-        public string? GrindableSolution;
-    }
-}