Further work on static side

PkmnLib.Static/Utils/StringKey.cs

@@ -1,5 +1,3 @@
-using System;
-
 namespace PkmnLib.Static.Utils;
 
 /// <summary>
@@ -12,24 +10,28 @@ public readonly record struct StringKey
 {
     private readonly string _key;
 
+    /// <inheritdoc cref="StringKey"/>
     public StringKey(string key)
     {
         _key = key;
     }
 
+    /// <summary>
+    /// Converts a <see cref="StringKey"/> to a <see cref="string"/>.
+    /// </summary>
     public static implicit operator string(StringKey key) => key._key;
+    
+    /// <summary>
+    /// Converts a <see cref="string"/> to a <see cref="StringKey"/>.
+    /// </summary>
     public static implicit operator StringKey(string key) => new(key);
 
+    /// <inheritdoc cref="string.ToString()"/>
     public override string ToString() => _key.ToLowerInvariant();
 
-    public bool Equals(StringKey other)
-    {
-        return string.Equals(_key, other._key, StringComparison.InvariantCultureIgnoreCase);
-    }
-
-    public override int GetHashCode()
-    {
-        return StringComparer.InvariantCultureIgnoreCase.GetHashCode(_key);
-    }
+    /// <inheritdoc />
+    public bool Equals(StringKey other) => string.Equals(_key, other._key, StringComparison.InvariantCultureIgnoreCase);
 
+    /// <inheritdoc />
+    public override int GetHashCode() => StringComparer.InvariantCultureIgnoreCase.GetHashCode(_key);
 }