Fix white spaces in project path

[Sheol27]

Sorry, I had to delete the pull requests I made yesterday because of a problem! I hope this version using percent-encoding is fine, let me know!

[pr2502]

hi. sorry for late response! i had a busy weekend. i've looked into it more and realized that this is unfortunately not enough to fix the percent encoding troubles because of false assumptions i made in the select_workspace_root function here and here.

i'm using paths directly as URIs without percent-encoding them which might break in case someone has (accidentally or on purpose) a file name with a % code in it.

specifically we'll need to move the URI destructuring into the select_workspace_root, percent-decode it there only where it's appropriate and return a path instead of URI (probably as a String). avoiding the roundtrips through the uriparse::URI type in branches where the input is not typed as URI coming from a LSP.

if you want to give it a go feel free to ask any more questions, or just leave it to me. i should be able to get to it within a few days^^

[pr2502]

hi! sorry for the lack of progress. life got in the way.. I've implemented the change to only decode strings which are actually URIs and it should be working as expected now :)