Test site speedup

[cea2aj]

Speed up the test site build step by moving some work from the build step to the setup step

The setup-test-site command now does all the work to generate the jambo test site, and the build command does a regular npx jambo build && grunt webpack

By moving the card and the vertical generation work to the setup step, the build step improves from 21.9 seconds to 7.4 seconds on my laptop. The downside is that some changes will now require a full setup to be ran where before it was possible to apply the change with the build command:

• Updating page templates
• Updating patch files
• Updating the page config files

J=none
TEST=manual

Test the speed improvements and smoke test the test site

[coveralls]

Coverage remained the same at 6.352% when pulling 79b05a2 on dev/test-site-speedup into 6402079 on develop.