Output/terminal linkmatcher does not match windows-style-paths resulting in no clickable links.

[emilhammarstedtst]

Bug Description:

When getting terminal output any windows-style-paths produced are not underlined when hovered or clickable due to TerminalLinkmatcherFiles-class passing string paths to Path-class that are not "valid".

not the same as issue #10224

Steps to Reproduce:

Run any terminal command that produces a file reference in output. eg. build error message from GCC
c:\code\my_test_prj\main.c:6:30: error: expected ';' before '}' token

The above output will not be hover-able and show as an underlined and be ctrl-clickable

Additional Information

• Operating System: Windows
• Theia Version: 1.18