feat: configure cursor distance from viewport edges

src/editor.rs

@@ -1762,6 +1762,7 @@ pub struct Editor {
     bottom_bar: ChromeLine,
     popup: PopupConfig,
     labels: BTreeMap<String, String>,
+    scroll_distance: Option<usize>,
     battery_charge: Option<u8>,
     battery_label: String,
     git_blame: bool,
@@ -1863,6 +1864,7 @@ impl Editor {
             bottom_bar: ChromeLine::bottom(),
             popup: PopupConfig::default(),
             labels: BTreeMap::new(),
+            scroll_distance: Some(0),
             battery_charge: None,
             battery_label: String::new(),
             git_blame: true,
@@ -2601,6 +2603,14 @@ impl Editor {
             .map_or(self.active.view.word_wrap, |diff| diff.word_wrap)
     }
 
+    pub fn scroll_distance(&self) -> Option<usize> {
+        self.scroll_distance
+    }
+
+    pub(crate) fn set_scroll_distance(&mut self, distance: Option<usize>) {
+        self.scroll_distance = distance;
+    }
+
     pub(crate) fn set_diff_context_options(&mut self, context_lines: usize, expand_lines: usize) {
         self.diff_context_options = (context_lines, expand_lines);
         if let Some(diff) = &mut self.diff {