Allow changing the log file path in preferences

[Waqar144]

#156

[mlangkabel]

Thanks for handing in this pull request! The code is looking good already, but please fix the things I mentioned in my review.

Apart from that, it would be great if the log file path of the logger is set if the user saves and closes the application settings. Otherwise the settings do not match what really happens.

[Waqar144]

Applied requested changes:

• Directory path for FileLogger is now set in Application::loadSettings() instead of app/main.cpp
• Fixed tabs
• Main menu -> 'Show Log Folder' was showing incorrect path, that has been fixed.
• New log directory path will come into effect immediately on saving prefrences

[mlangkabel]

Thank you for your changes. I left some comments where the code formatting was still off.

I also tested the changes on my system and it is not working. Did you test this? Is it working for you? Does Sourcetrail write the log files to the new location after you change the log directory in the preferences?

[Waqar144]

Updated.

• Fixed formatting
• Fixed log file not being saved

[mlangkabel]

Looking good now. Thanks again for implementing this feature!