Fix: Path of files with '#' is cut in Markers resource (Problems) #136588

[Jiogo18]

This PR fixes #136588.

problemCollectors use URI.parse(resource) to get the path of the "error" but it's a file.
➡️ Replaced by URI.file(resource).

What I checked:

• Reproduce the "error" of Files with a '#' character can't be opened when an error occurs ('Problems' menu) #136588 => the "error" points to C:\Code\C#\tools\main.cpp
• Removed the "error" => the program is executed correctly
• Debugging other projects in JS, and C++ => works

[ghost]

All CLA requirements met.

[jrieken]

This negatively changes how Uri#file works and cannot be merged. The file util isn't to parse extensions and no decoding can happen here

[Jiogo18]

Solved in #136588, thanks.