Fix some playlist item text issues

[chriszhangusc]

1. Fix playlist item text overflow issue
2. Reformat the username and text
3. Add title option to permalink

I did these changes mainly because sometimes the text of a playlist item could be too long to fit, and I also seperate the title and username of the sound track into two lines for better readability and accessibility.

Before:

After:

You can reveal long text by hovering the mouse over it like this:

[rwieruch]

Thank you so much! 👍 Looks so much nicer now :)