This is what I get when I go on a page:
As you can see, the long titles are fully shown.
This is what I get when I go inside a library/list:
As you can see, the titles of some elements are cropped.
Question: how to fix this? Is this a well known bug? Am I the only one to be annoyed by this behaviour?
I did Googled the question, and the closest likely answer comes with Michael Mayr's question. But having a wider quick launch will not be very helpful - it will take too much space. I have full control on the site and I can use SharePoint Designer 2013.
I need help on this.