Fix: Correct typo in code comment (#14671)

Co-authored-by: Tommaso Sciortino <sciortino@gmail.com>

packages/cli/src/nonInteractiveCli.ts

@@ -222,7 +222,7 @@ export async function runNonInteractive({
           settings,
         );
         // If a slash command is found and returns a prompt, use it.
-        // Otherwise, slashCommandResult fall through to the default prompt
+        // Otherwise, slashCommandResult falls through to the default prompt
         // handling.
         if (slashCommandResult) {
           query = slashCommandResult as Part[];