Remove workspace::Item trait

Co-Authored-By: Nathan Sobo <nathan@zed.dev>
Co-Authored-By: Keith Simmons <keith@zed.dev>
Co-Authored-By: Antonio Scandurra <antonio@zed.dev>

crates/project/src/worktree.rs

@@ -1,3 +1,5 @@
+use crate::ProjectEntry;
+
 use super::{
     fs::{self, Fs},
     ignore::IgnoreStack,
@@ -1502,6 +1504,13 @@ impl File {
     pub fn worktree_id(&self, cx: &AppContext) -> WorktreeId {
         self.worktree.read(cx).id()
     }
+
+    pub fn project_entry(&self, cx: &AppContext) -> Option<ProjectEntry> {
+        self.entry_id.map(|entry_id| ProjectEntry {
+            worktree_id: self.worktree_id(cx),
+            entry_id,
+        })
+    }
 }
 
 #[derive(Clone, Debug, PartialEq, Eq)]