[Refactor]: google-services.json gitignore 추가 (#124)

Author: JJUYAAA

.gitignore

@@ -16,4 +16,5 @@ local.properties
 .idea/deploymentTargetSelector.xml
 .idea/misc.xml
 .idea/gradle.xml
-.idea/appInsightsSettings.xml
+.idea/appInsightsSettings.xml
+/app/google-services.json

app/google-services.json

@@ -445,6 +445,6 @@
     <string name="api_genre_science_it" translatable="false">과학/IT</string>
 
     <!-- Google login constants -->
-    <string name="default_web_client_id" translatable="false">353417813537-ck9g1v0qprlb5nf4dvasinim403eng0f.apps.googleusercontent.com</string>
+    <string name="default_web_client_id" translatable="false">211189590640-a2ul4bnsvislm12ov7k8eu61mtketl8d.apps.googleusercontent.com</string>
 
 </resources>