v1.3

Update Notes:

• Added support for additional font formats, now supporting .ttf and .otf.
• Fixed an issue where the program would crash when the input font was a file with a changed extension (e.g., changing a .ttc font collection format to a .ttf font format). The program will now check whether the input font file is valid.
• Optimized print and comment terminology to better align with computer science conventions.

更新说明：

• 增加支持的字体格式，现在支持 .ttf 及 .otf。
• 修复当输入的字体为更改过扩展名的文件（例如将 .ttc 字体集格式更改为 .ttf 字体格式）时程序闪退的问题。现在会检测输入的字体文件是否合法。
• 优化回显和注释术语，以更符合计算机科学的规范。