chore: ratatui 0.30 maintenance + collaboration baseline (#1)

bench/Cargo.toml

@@ -10,7 +10,7 @@ bench = false
 
 [dependencies]
 tui-textarea = { path = "..", features = ["no-backend", "search"] }
-ratatui = { version = "0.29.0", default-features = false }
+ratatui = { version = "0.30.0", default-features = false }
 
 [dev-dependencies]
 criterion = "0.5"

bench/src/lib.rs

@@ -4,6 +4,7 @@
 use ratatui::backend::{Backend, WindowSize};
 use ratatui::buffer::Cell;
 use ratatui::layout::{Position, Size};
+use ratatui::prelude::backend::ClearType;
 use ratatui::Terminal;
 use std::io;
 use tui_textarea::TextArea;
@@ -40,6 +41,8 @@ impl Default for DummyBackend {
 }
 
 impl Backend for DummyBackend {
+    type Error = io::Error;
+
     #[inline]
     fn draw<'a, I>(&mut self, _content: I) -> io::Result<()>
     where
@@ -74,6 +77,11 @@ impl Backend for DummyBackend {
         Ok(())
     }
 
+    #[inline]
+    fn clear_region(&mut self, _clear_type: ClearType) -> io::Result<()> {
+        Ok(())
+    }
+
     #[inline]
     fn size(&self) -> io::Result<Size> {
         Ok(Size {