feat: add multi-source breed encyclopedia and two-hour refresh sessions

pets-fe/pages/walk/walk.js

@@ -1,6 +1,7 @@
 const { secure, toast } = require("../../utils/api");
 Page({
   data: {
+    mode: "walk",
     pets: [],
     selected: [],
     walk: null,
@@ -14,6 +15,10 @@ Page({
     busy: false,
     locationError: "",
   },
+  changeMode(e) {
+    const mode = e.currentTarget.dataset.mode;
+    if (mode !== this.data.mode) this.setData({ mode });
+  },
   onShow() {
     this.load();
     clearInterval(this.clock);