chore: Wrap WorkspaceId in newtype (#9492)

Release Notes:

- N/A

crates/editor/src/scroll.rs

@@ -182,7 +182,7 @@ impl ScrollManager {
         map: &DisplaySnapshot,
         local: bool,
         autoscroll: bool,
-        workspace_id: Option<i64>,
+        workspace_id: Option<WorkspaceId>,
         cx: &mut ViewContext<Editor>,
     ) {
         let (new_anchor, top_row) = if scroll_position.y <= 0. {
@@ -221,7 +221,7 @@ impl ScrollManager {
         top_row: u32,
         local: bool,
         autoscroll: bool,
-        workspace_id: Option<i64>,
+        workspace_id: Option<WorkspaceId>,
         cx: &mut ViewContext<Editor>,
     ) {
         self.anchor = anchor;