[devtools] Wrap long file names of stack frames in the error overlay (#88886)
https://github.com/user-attachments/assets/0594744b-5dd5-4550-90b8-77071962f666
See [overflow-wrap docs](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/overflow-wrap) for break-word vs anywhere.
Just a one-line CSS change. The other changes are renaming functions to disambiguate source/codeframe and the filename.