restrooms_spec.rb: Fix a test (RefugeRestrooms#608)

Background:

The Mission Creek Cafe in San Francisco has been closed for some time.

Google Maps API now resolves "Mission Creek Cafe"
to a coffee shop in Washington state.

Washington is too far away from our stub restroom entries;
No stub restrooms are located near Washington,
so no restroom results are shown on our results page for this search.

The test expects to see a stub restroom entry on the reults page,
but does not see it, and so the test fails.

---

Fix:

search the Maps API for "San Francisco," not "Mission Creek Cafe"

(This returns a lat/long associated with San Francisco not Washington)

spec/features/restrooms_spec.rb

@@ -45,7 +45,7 @@
     create(:restroom, :geocoded, name: 'Mission Creek Cafe')
 
     visit root_path
-    fill_in 'search', with: 'Mission Creek Cafe'
+    fill_in 'search', with: 'San Francisco'
     click_on 'Search'
 
     expect(page).to have_content 'Mission Creek Cafe'