Fix errors when workspace path has spaces on Windows

[wenbei]

Add quotes to command and args when path contains spaces. Fixes #200 on Windows.

Current status Running tests directly from play (▶) button: Works well Running "Debug Test": Seems to work now ~Debug mode will add quotes again despite seemly using the same code as running tests directly. Arguments become ""double quotes""~

Starting watch/continuous mode:

• On the "samples/basic" test folder, fails with Error: No test suite found in file, similar errors as https://github.com/vitest-dev/vitest/issues/3296

• Also has colour formatting errors in vscode output (use workaround --no-color）

• On another personal repo, fails with Error: Cannot read properties of undefined (reading 'test') similar to https://github.com/vitest-dev/vitest/issues/5251

Any guidance would be appreciated.

Minor: removes quote typo in error log.

[wenbei]

This is fixed with #253