fix: SwiftLint違反を修正（余分な空行削除）

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: nyanko3141592

azooKeyMac/Windows/PromptInput/PromptInputView.swift

@@ -2,7 +2,6 @@ import Core
 import Foundation
 import SwiftUI
 
-
 struct PromptInputView: View {
     @State private var promptText: String = ""
     @State private var previewText: String = ""