FIX: Adds sheet "block" navigation

This was a left over from the old days

Control+right arrow takes you to the next cell with text
or the end of the block

NB: Missing tests

bindings/wasm/src/lib.rs

@@ -7,6 +7,7 @@ use wasm_bindgen::{
 use ironcalc_base::{
     expressions::{lexer::util::get_tokens as tokenizer, types::Area, utils::number_to_column},
     types::{CellType, Style},
+    worksheet::NavigationDirection,
     BorderArea, ClipboardData, UserModel as BaseModel,
 };
 
@@ -530,6 +531,20 @@ impl Model {
         self.model.on_page_up().map_err(to_js_error)
     }
 
+    #[wasm_bindgen(js_name = "onNavigateToEdgeInDirection")]
+    pub fn on_navigate_to_edge_in_direction(&mut self, direction: &str) -> Result<(), JsError> {
+        let direction = match direction {
+            "ArrowLeft" => NavigationDirection::Left,
+            "ArrowRight" => NavigationDirection::Right,
+            "ArrowUp" => NavigationDirection::Up,
+            "ArrowDown" => NavigationDirection::Down,
+            _ => return Err(JsError::new(&format!("Invalid direction: {direction}"))),
+        };
+        self.model
+            .on_navigate_to_edge_in_direction(direction)
+            .map_err(to_js_error)
+    }
+
     #[wasm_bindgen(js_name = "setWindowWidth")]
     pub fn set_window_width(&mut self, window_width: f64) {
         self.model.set_window_width(window_width);