feat: follow emulator best practices (#62)

Author: matt-oakes

src/commands/android_emulator_start.yml

@@ -41,7 +41,10 @@ steps:
 
   - run:
       name: Create Android Emulator
-      command: avdmanager create avd --force -n <<parameters.device_name>> -k "system-images;<<parameters.platform_version>>;google_apis;x86" -g google_apis -d "Nexus 4"
+      command:
+        avdmanager create avd --force --name <<parameters.device_name>> --package
+        "system-images;<<parameters.platform_version>>;default;x86_64" --tag
+        default --device pixel
 
   - run:
       name: Start Android Emulator (background)