fix(helix-term): correct health status for non-existent grammar paths (#14619)

Author: jan-justin

helix-term/src/health.rs

@@ -365,8 +365,8 @@ fn probe_parser(grammar_name: &str) -> std::io::Result<()> {
     write!(stdout, "Tree-sitter parser: ")?;
 
     match helix_loader::grammar::get_language(grammar_name) {
-        Ok(_) => writeln!(stdout, "{}", "✓".green()),
-        Err(_) => writeln!(stdout, "{}", "None".yellow()),
+        Ok(Some(_)) => writeln!(stdout, "{}", "✓".green()),
+        Ok(None) | Err(_) => writeln!(stdout, "{}", "None".yellow()),
     }
 }