time: Update examples, tests, and other code to use new Timer::after_x convenience methods

examples/std/src/bin/tcp_accept.rs

@@ -100,7 +100,7 @@ async fn main_task(spawner: Spawner) {
                 return;
             }
 
-            Timer::after(Duration::from_millis(500)).await;
+            Timer::after_millis(500).await;
         }
         info!("Closing the connection");
         socket.abort();

examples/std/src/bin/tick.rs

@@ -1,14 +1,14 @@
 #![feature(type_alias_impl_trait)]
 
 use embassy_executor::Spawner;
-use embassy_time::{Duration, Timer};
+use embassy_time::Timer;
 use log::*;
 
 #[embassy_executor::task]
 async fn run() {
     loop {
         info!("tick");
-        Timer::after(Duration::from_secs(1)).await;
+        Timer::after_secs(1).await;
     }
 }