tidy up config imports a little

src/config/color.rs

@@ -1,4 +1,6 @@
 use crate::config::*;
+use termwiz::cell::CellAttributes;
+use termwiz::color::{ColorSpec, RgbColor};
 
 #[derive(Debug, Deserialize, Clone)]
 pub struct Palette {

src/config/font.rs

@@ -1,4 +1,5 @@
 use crate::config::*;
+use termwiz::color::RgbColor;
 
 #[cfg(target_os = "macos")]
 const FONT_FAMILY: &str = "Menlo";

src/config/mod.rs

@@ -16,8 +16,6 @@ use std::fs;
 use std::io::prelude::*;
 use std::path::PathBuf;
 use term;
-use termwiz::cell::CellAttributes;
-use termwiz::color::{ColorSpec, RgbColor};
 use termwiz::hyperlink;
 use termwiz::input::{KeyCode, Modifiers};
 use toml;