Description of problem:
The new ProjectHelmChartRepository has a form field "Chart repository name" with the helptext "A display name for the Helm Chart repository."

But doesn't allow the user to enter a human-readable name. When entering "IBM Charts" the error shows that it must match a Kubernetes resource name.

Version-Release number of selected component (if applicable):
4.11

How reproducible:
Always

Steps to Reproduce:
1. Switch to Developer Perspective
2. Navigate to Add > "Helm Chart repositories"
3. Enter "IBM Charts" as "Chart repository name"

(and if this is fixed https://raw.githubusercontent.com/IBM/charts/master/repo/community/index.yaml as URL)

Actual results:
"Chart repository name" shows an validation error:
"Name must consist of lower-case letters, numbers and hyphens. It must start with a letter and end with a letter or number."

When switching to the YAML output you can see that the "Chart repository name" input is used as `metadata.name` as well as `spec.name`.

`spec.name` is defined in the ProjectHelmChartRepository CRD as: "Optional associated human readable repository name, it can be used by UI for displaying purposes"

Expected results:
Instead of one input field, I would expect (or suggest) to show two input fields.

1. "Name" (required)
   helpText: "Unique resource name for the Helm Chart repository."

2. "Display name" (optional)
   helpText: "A display name for the Helm Chart repository."

The first field should only update `metadata.name`, and the second one `spec.name`.

Additional info: