Add actual ASCII-Art for distros, add first three distros and being able to choose a starting-distro. Update UI to fix multiple small bugs.

Assets/Scripts/Meta/GachaService.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using KernelPanic.Data;
 
 namespace KernelPanic.Meta
 {
@@ -7,7 +9,23 @@ namespace KernelPanic.Meta
     /// </summary>
     public sealed class GachaService
     {
+        private readonly List<DistroDefinition> bannerPool = new();
+
         public int PullTokens => 0; // TODO: Replace with the real pull-token wallet when that meta system exists.
+        public IReadOnlyList<DistroDefinition> BannerPool => bannerPool;
+
+        public event Action BannerPoolChanged;
+
+        public void AddToBannerPool(DistroDefinition distro)
+        {
+            if (distro == null || bannerPool.Contains(distro))
+            {
+                return;
+            }
+
+            bannerPool.Add(distro);
+            BannerPoolChanged?.Invoke();
+        }
 
         public GachaPullResult PerformPull(EntropyWallet wallet, int cost)
         {