Increase shared memory for government-frontend

Too little shared memory causes some tests that use Selenium
to fail when running locally in the development environment.
This change fixes that.

projects/government-frontend/docker-compose.yml

@@ -19,6 +19,7 @@ x-government-frontend: &government-frontend
 services:
   government-frontend-lite:
     <<: *government-frontend
+    shm_size: 512mb
 
   government-frontend-app: &government-frontend-app
     <<: *government-frontend