Description of problem:

In quay 3.16.0 new UI, the repository log bar chart cannot display the bars If there are fewer than 3 types of operations

Version-Release number of selected component (if applicable):

// quay 3.16.0
----------------------
quay.io/redhat-user-workloads/quay-eng-tenant/stable-3-16-v4-19@sha256:33d2f882d86c0541fbc8dd61ccab047455fe10e4218f207b13bdbadbda1b19ce

Steps to reproduce:

1. Log in quay new UI and create a repository
2. Push image to and pull image from this repository, create some logs
3. Check the repository log bar char status

Actual results:

If there are fewer than 3 types of operations, The repository log bar chart cannot display the bars.

Expected results

The repository log bar chart should display the bars correctly even there is only one kind of operation