- remove lowercasing from word retrieval to prevent masking of an iss…

…ue tied to passing in words in the wrong case

- update tests to check for uppercase correctly failing tests

Sources/KukaiCryptoSwift/Mnemonic/Mnemonic.swift

@@ -30,7 +30,7 @@ public struct Mnemonic: Equatable, Codable {
 
 	/// The list of words.
 	public var words: [String] {
-		phrase.lowercased().split(separator: " ").map(String.init)
+		phrase.split(separator: " ").map(String.init)
 	}
 
 	/**

Tests/KukaiCryptoSwiftTests/MnemonicTests.swift

@@ -78,5 +78,8 @@ final class MnemonicTests: XCTestCase {
 
 		let mnemonic7 = try Mnemonic(seedPhrase: "kit trigger pledge excess payment sentence dutch mandate start sense seed kit")
 		XCTAssert(mnemonic7.isValid() == false)
+
+		let mnemonic8 = try Mnemonic(seedPhrase: "Kit trigger pledge excess payment sentence dutch mandate start sense seed venture")
+		XCTAssert(mnemonic8.isValid() == false)
 	}
 }