feat: public recipe access (#1610)

* initial public explorer API endpoint

* public API endpoint

* cleanup recipe page

* wip: init explorer page

* use public URLs for shared recipes

* refactor private share tokens to use shared page

frontend/api/public/shared.ts

@@ -0,0 +1,14 @@
+import { BaseAPI } from "../_base";
+import { Recipe } from "~/types/api-types/recipe";
+
+const prefix = "/api";
+
+const routes = {
+  recipeShareToken: (token: string) => `${prefix}/recipes/shared/${token}`,
+};
+
+export class SharedApi extends BaseAPI {
+  async getShared(item_id: string) {
+    return await this.requests.get<Recipe>(routes.recipeShareToken(item_id));
+  }
+}