adding data browser

src/models/page.ts

@@ -0,0 +1,13 @@
+export class Page {
+  start: number;
+  limit: number;
+
+  constructor(data: Partial<Page>) {
+    this.start = data?.start ?? 1;
+    this.limit = data?.limit ?? 20;
+  }
+
+  toString(): string {
+    return `(${this.start}:${this.limit})`;
+  }
+}