Dock persistence working!

Co-Authored-By: Mikayla Maki <mikayla@zed.dev>

crates/editor/src/persistence.rs

@@ -0,0 +1,30 @@
+use std::path::PathBuf;
+
+use db::connection;
+use indoc::indoc;
+use lazy_static::lazy_static;
+use project::WorktreeId;
+use sqlez::domain::Domain;
+use workspace::{ItemId, Workspace};
+
+use crate::Editor;
+
+connection!(DB: EditorDb<(Workspace, Editor)>);
+
+impl Domain for Editor {
+    fn name() -> &'static str {
+        "editor"
+    }
+
+    fn migrations() -> &'static [&'static str] {
+        &[indoc! {"
+                
+        "}]
+    }
+}
+
+impl EditorDb {
+    fn get_path(_item_id: ItemId, _workspace_id: WorktreeId) -> PathBuf {
+        unimplemented!();
+    }
+}