Rollup merge of #41951 - Eijebong:master, r=GuillaumeGomez

rustdoc: Break words in the location box of the sidebar.

This prevents long names from overflowing.

Before:
![before](https://img.bananium.fr/eijebong/afcfe18b-393e-4d3b-bc11-fe3def6659b9.png)

After:
![after](https://img.bananium.fr/eijebong/9483466b-3b6c-4509-ab0f-fd0c6572ef27.png)

diff --cc src/librustdoc/html/static/rustdoc.css
Simple merge