Twenty Fourteen: infinite scroll not working when WooCommerce is active

### Quick summary

When WooCommerce is active on site, infinite scroll will not work.

Additionally, the default footer that shows/hides on this theme disappears when WooCommerce is active.


### Steps to reproduce

1. Activate Twenty Fourteen theme on an Atomic site with the default plugins only and >10 posts
2. Ensure posts are set to display on homepage and that the max number of posts to display is 5
3. Observe infinite scroll display more than 5 posts as you scroll the homepage
4. Activate WooCommerce plugin
5. Observe how homepage only displays max 5 posts and doesn't load more/stops at 5

### What you expected to happen

I expect infinite scroll to continue to load more posts on homepage.

### What actually happened

I see infinite scroll doesn't work and no additional posts are loaded on the homepage.

### Impact

All

### Available workarounds?

No but the platform is still usable

### If the above answer is "Yes...", outline the workaround.

_No response_

### Platform (Simple and/or Atomic)

Atomic

### Logs or notes

Reported in 8953693-zd-a8c

Reproduce the issue with Twenty Fourteen on an Atomic site, first without WooCommerce and then with it, using more than 10 posts and a homepage limit of 5. Compare infinite-scroll loading and the default footer in both states; done means additional posts load after WooCommerce is activated and the footer behavior remains correct.

Written by the indexing model from the issue text.