feat(lsp): enable clippy lints if cargo-clippy is detected

fix(runnables): `cd` into directory with spaces not working (mrcjkb#214)

fix(neotest): positions only queried for current buffer

feat(lsp): filtered workspace symbol searches (mrcjkb#205)

feat(health): add check for neotest-rust conflict

feat(lsp): improved parsing of test result error messages

fix(lsp): update testables cache if `runSingle` is a test

feat(lsp): `RustLsp testables` command + failed test diagnostics (mrc…

…jkb#197)

feat(commands): `Rustc unpretty args[]` (mrcjkb#194)

Co-authored-by: saying <xzsxzy@qq.com>
Co-authored-by: saying121 <saying121@example.com>

fix(renderDiagnostic): hover closes immediately if `auto_focus` disabled