Revert "Hide the mouse when the user is typing in the editor (#25040)" (#25393)

This reverts commit a8610fbd13.

I've been seeing some reports of segmentation faults that appear to
point to this change as the culprit.

Closes #25366.

Release Notes:

- Community: Reverted #25040, so remove the corresponding entry from the
release notes.

crates/editor/src/editor.rs

@@ -729,8 +729,6 @@ pub struct Editor {
     toggle_fold_multiple_buffers: Task<()>,
     _scroll_cursor_center_top_bottom_task: Task<()>,
     serialize_selections: Task<()>,
-    mouse_cursor_hidden: bool,
-    hide_mouse_while_typing: bool,
 }
 
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
@@ -1454,10 +1452,6 @@ impl Editor {
             serialize_selections: Task::ready(()),
             text_style_refinement: None,
             load_diff_task: load_uncommitted_diff,
-            mouse_cursor_hidden: false,
-            hide_mouse_while_typing: EditorSettings::get_global(cx)
-                .hide_mouse_while_typing
-                .unwrap_or(true),
         };
         this.tasks_update_task = Some(this.refresh_runnables(window, cx));
         this._subscriptions.extend(project_subscriptions);
@@ -2795,8 +2789,6 @@ impl Editor {
             return;
         }
 
-        self.mouse_cursor_hidden = self.hide_mouse_while_typing;
-
         let selections = self.selections.all_adjusted(cx);
         let mut bracket_inserted = false;
         let mut edits = Vec::new();
@@ -14611,11 +14603,6 @@ impl Editor {
             self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
             self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
             self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
-            self.hide_mouse_while_typing = editor_settings.hide_mouse_while_typing.unwrap_or(true);
-
-            if !self.hide_mouse_while_typing {
-                self.mouse_cursor_hidden = false;
-            }
         }
 
         if old_cursor_shape != self.cursor_shape {