pdf

Is your feature request related to a problem? Please describe.
If you have multiple windows each editing files of the same name, but in different directories, it is difficult to differentiate between them.

Describe the solution you'd like
I would like for the filepath of the file currently being edited to be shown in the titlebar along with the name of the file.

Just a quick bug I came across, the css property: 'text-transform: capitalize' makes every letter in the word lowercase, except for the first which is made uppercase. According to the spec, only the first letter should be modified and other letters should remain as typed.

[cap-test.pdf](https://github.com/Kozea/WeasyPrint/files/8340340/cap-te