fix broken array-in snippets (#360)

* fix broken array-in snippets

* npm run snippets

* revert array contians anay changes

Author: morganchen12

firestore-next/test.firestore.js

@@ -920,7 +920,7 @@ describe("firestore", () => {
                 // [START in_filter_with_array]
                 const { query, where } = require("firebase/firestore");  
 
-                const q = query(citiesRef, where('regions', 'in', [['west_coast', 'east_coast']]));
+                const q = query(citiesRef, where('regions', 'in', [['west_coast'], ['east_coast']]));
                 // [END in_filter_with_array]
               }
             });

firestore/test.firestore.js

@@ -893,7 +893,7 @@ describe("firestore", () => {
 
                 // [START in_filter_with_array]
                 citiesRef.where('regions', 'in',
-                    [['west_coast', 'east_coast']]);
+                    [['west_coast'], ['east_coast']]);
                 // [END in_filter_with_array]
             });
 

snippets/firestore-next/test-firestore/in_filter_with_array.js

@@ -7,5 +7,5 @@
 // [START in_filter_with_array_modular]
 import { query, where } from "firebase/firestore";  
 
-const q = query(citiesRef, where('regions', 'in', [['west_coast', 'east_coast']]));
+const q = query(citiesRef, where('regions', 'in', [['west_coast'], ['east_coast']]));
 // [END in_filter_with_array_modular]