Use upstream versions of ratatui crates

src/skip.rs

@@ -1,23 +1,14 @@
 use std::num::NonZeroUsize;
 
-use ratatui::widgets::Widget;
+use ratatui::{prelude::buffer::CellDiffOption, widgets::Widget};
 
-pub struct Skip {
-	skip: bool
-}
-
-impl Skip {
-	#[must_use]
-	pub fn new(skip: bool) -> Self {
-		Self { skip }
-	}
-}
+pub struct Skip;
 
 impl Widget for Skip {
 	fn render(self, area: ratatui::prelude::Rect, buf: &mut ratatui::prelude::Buffer) {
 		for x in area.x..(area.x + area.width) {
 			for y in area.y..(area.y + area.height) {
-				buf[(x, y)].skip = self.skip;
+				buf[(x, y)].diff_option = CellDiffOption::Skip;
 			}
 		}
 	}