feat: Add reordering to starred documents (#2953)

* draft

* reordering

* JIT Index stars on first load

* test

* Remove unused code on client

* small unrefactor

app/models/Star.ts

@@ -0,0 +1,28 @@
+import { observable } from "mobx";
+import BaseModel from "./BaseModel";
+import Field from "./decorators/Field";
+
+class Star extends BaseModel {
+  id: string;
+
+  @Field
+  @observable
+  index: string;
+
+  documentId: string;
+
+  createdAt: string;
+  updatedAt: string;
+
+  next(): Star | undefined {
+    const index = this.store.orderedData.indexOf(this);
+    return this.store.orderedData[index + 1];
+  }
+
+  previous(): Star | undefined {
+    const index = this.store.orderedData.indexOf(this);
+    return this.store.orderedData[index + 1];
+  }
+}
+
+export default Star;