Sudoxide v0.3.5

• 新功能：新增三种提示：X-Wing, Swordfish, Jellyfish。
• 修复：修复了休闲难度数独有可能无法正常生成，导致CPU占用持续过高的问题；修复了生成数独的过程中重新生成按钮仍可点击，导致CPU占用持续过高的问题。

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• New features: Three new hints added: X-Wing, Swordfish, Jellyfish.
• Fixes: Fixed the issue that extraeasy difficulty sudoku may not be generated normally, resulting in a continuous high CPU usage; fixed the issue that the regenerate button can still be clicked during the sudoku generation process, resulting in a continuous high CPU usage.