Move definitions runner related functions

fn runner() and fn from_cli(cli: Cli) util functions are located to
app.rs. However, those are utils for runner. So this commit change the
functions to runner.rs.

examples/run.rs

@@ -1,5 +1,5 @@
 fn main() {
-    match xplr::app::runner().and_then(|a| a.run()) {
+    match xplr::runner::runner().and_then(|a| a.run()) {
         Ok(Some(out)) => print!("{}", out),
         Ok(None) => {}
         Err(err) => {

src/app.rs

@@ -1,11 +1,9 @@
-use crate::cli::Cli;
 use crate::config::Config;
 use crate::config::Mode;
 use crate::explorer;
 use crate::input::Key;
 use crate::lua;
 use crate::permissions::Permissions;
-use crate::runner::Runner;
 use crate::ui::Layout;
 use anyhow::{bail, Result};
 use chrono::{DateTime, Local};
@@ -2537,13 +2535,3 @@ impl App {
         }
     }
 }
-
-/// Create a new runner object passing the default arguments
-pub fn runner() -> Result<Runner> {
-    Runner::new()
-}
-
-/// Create a new runner object passing the given arguments
-pub fn from_cli(cli: Cli) -> Result<Runner> {
-    Runner::from_cli(cli)
-}

src/bin/xplr.rs

@@ -2,8 +2,8 @@
 
 use std::env;
 
-use xplr::app;
 use xplr::cli::Cli;
+use xplr::runner;
 
 fn main() {
     let cli = Cli::parse(env::args()).unwrap_or_else(|e| {
@@ -47,7 +47,7 @@ fn main() {
     } else if cli.version {
         println!("xplr {}", xplr::app::VERSION);
     } else {
-        match app::from_cli(cli).and_then(|a| a.run()) {
+        match runner::from_cli(cli).and_then(|a| a.run()) {
             Ok(Some(out)) => print!("{}", out),
             Ok(None) => {}
             Err(err) => {

src/runner.rs

@@ -568,3 +568,13 @@ impl Runner {
         result
     }
 }
+
+/// Create a new runner object passing the default arguments
+pub fn runner() -> Result<Runner> {
+    Runner::new()
+}
+
+/// Create a new runner object passing the given arguments
+pub fn from_cli(cli: Cli) -> Result<Runner> {
+    Runner::from_cli(cli)
+}