fix: Fixed code coloring issues

[Kakueeen]

Fixed an issue where code could not be colored when the project was opened in directory mode

Log: fix issue

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在extendedproject.h文件中，isValid函数的实现被修改，移除了对outputDirectory的检查，可能会影响函数的预期行为。
• 在main.cpp文件中，-j=$(nproc)选项被移除，这可能会改变程序的行为，特别是在多核CPU上运行时。

是否建议立即修改:

• 是，需要确认这些更改是否符合预期的功能。如果移除-j=$(nproc)选项是无意的，那么应该立即恢复。
• 是，需要验证isValid函数的修改是否符合预期，因为这可能会影响依赖于这个函数行为的代码部分。

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Kakueeen, LiHua000
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