Clean-up edition-related things

rustfmt.toml

 max_width = 200
-edition = "2018"

src/application.rs

@@ -2,7 +2,9 @@ use crate::config;
 use crate::utils;
 use crate::widgets::Window;
 use gio::prelude::*;
+use glib::clone;
 use gtk::prelude::*;
+use log::info;
 use std::env;
 use std::{cell::RefCell, rc::Rc};
 

src/main.rs

-#[macro_use]
-extern crate log;
-#[macro_use]
-extern crate glib;
-
 use gettextrs::*;
 
 mod application;

src/widgets/paginator.rs

 use anyhow::Result;
 use gettextrs::gettext;
+use glib::clone;
 use gtk::prelude::*;
 use std::cell::RefCell;
 use std::rc::Rc;