Project last commit info w/ "code owners" has inconsistent height when loading
### Summary
While browsing the repository, the "project last commit" element has inconsistent height when in a loading state, and because it loads after the file tree, this causes the entire UI to shift up and down while browsing. The result is almost constant mis-clicks and navigating into the wrong files/folders.
I can't see this happening on the main gitlab repo, and the difference appears to be related to the "code owners" element which isn't visible there.
### Steps to reproduce
Simply browsing a repository
### Example Project
N/A
### What is the current *bug* behavior?
Entire UI moves downwards shortly after loading
### What is the expected *correct* behavior?
Once an item in the Repository view is rendered and clickable, it should not move
### Relevant logs and/or screenshots

### Output of checks
This bug happens on GitLab.com
issue