custom metrics - test numbers / keys

adding specific numbers from fakeLabels.json for the footprints, but keeping the testing at just the keys for mets due to complexity

the keys in the fallback are different, so we can be sure here that the custom mets were accessed

www/__tests__/customMetricsHelper.test.ts

@@ -27,6 +27,7 @@ global.fetch = (url: string) =>
 it('gets the custom mets', async () => {
   const appConfig = await getConfig();
   await initCustomDatasetHelper(appConfig);
+  //expecting the keys from fakeLabels.json NOT metrics/metDataset.ts
   expect(getCustomMETs()).toMatchObject({
     walk: expect.any(Object),
     bike: expect.any(Object),
@@ -40,12 +41,13 @@ it('gets the custom mets', async () => {
 it('gets the custom footprint', async () => {
   const appConfig = await getConfig();
   await initCustomDatasetHelper(appConfig);
+  //numbers from fakeLabels.json
   expect(getCustomFootprint()).toMatchObject({
-    walk: expect.any(Number),
-    bike: expect.any(Number),
-    bikeshare: expect.any(Number),
-    'e-bike': expect.any(Number),
-    scootershare: expect.any(Number),
-    drove_alone: expect.any(Number),
+    walk: 0,
+    bike: 0,
+    bikeshare: 0,
+    'e-bike': 0.00728,
+    scootershare: 0.00894,
+    drove_alone: 0.22031,
   });
 });