chore: migrate to Rust 2024 edition and bump to v0.9.2 (#12)

* chore: migrate to Rust 2024 edition and bump to v0.9.2

- Bump edition to 2024 and rust-version to 1.85.0
- Replace f64::log10 with usize::ilog10 in num_digits
- Fix clippy lints surfaced by edition bump: repeat_n, derived Default, then_some
- Expand watch-check and watch-test aliases to cover all feature paths (crossterm_0_28, no-backend, tuirs variants, serde, arbitrary)
- Expand CI test and clippy workflows to full 6/8-entry feature matrices including termion on Ubuntu
- Apply rustfmt import reordering from edition 2024 rules

* fix: revert turis linux checks

examples/termion.rs

@@ -1,6 +1,6 @@
+use ratatui::Terminal;
 use ratatui::backend::TermionBackend;
 use ratatui::widgets::{Block, Borders};
-use ratatui::Terminal;
 use std::error::Error;
 use std::io;
 use std::sync::mpsc;
@@ -32,9 +32,11 @@ fn main() -> Result<(), Box<dyn Error>> {
                 keys_tx.send(Event::Term(event)).unwrap();
             }
         });
-        thread::spawn(move || loop {
-            tx.send(Event::Tick).unwrap();
-            thread::sleep(Duration::from_millis(100));
+        thread::spawn(move || {
+            loop {
+                tx.send(Event::Tick).unwrap();
+                thread::sleep(Duration::from_millis(100));
+            }
         });
         rx
     };