fix: remove unused variable and add missing FromStr import

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/modes/status.rs

@@ -1,6 +1,7 @@
 use clap::*;
 use is_terminal::IsTerminal;
 use std::path::PathBuf;
+use std::str::FromStr;
 
 use crate::modes::common::{get_format_box_chars_no_border_line_separator, OutputFormat};
 use crate::config;