fix(tui): Avoid unnecessarily re-rendering the user interface

Having the event loop be asynchronous causes too many unnecessary
redraws, despite the content not changing.

src/tui.rs

@@ -1,6 +1,5 @@
 use std::path::PathBuf;
 use std::sync::mpsc;
-use std::time::Duration;
 
 use anyhow::Result;
 use crossterm::event::{self, Event, KeyCode, KeyEvent, KeyModifiers};
@@ -79,10 +78,6 @@ pub fn run(projects: Projects) -> Result<()> {
 
         term.draw(|frame| draw(&mut state, frame))?;
 
-        if !event::poll(Duration::from_millis(10))? {
-            continue;
-        }
-
         if let Event::Key(key_event) = event::read()? {
             handle_key_event(&mut state, &mut msg_tx, key_event);
         }