hide nodePort in internal endpoints when nodePort is not set

[jqlu]

What this PR does

When nodePort is not set for a service, hide the nodePort endpoint rather than display a :0 endpoint.

How to reproduce it

1. deploy a ClusterIP type service

apiVersion: v1
kind: Service
metadata:
  name: my-service1
  labels:
    app: nginx-svc
spec:
  selector:
    app: nginx
  ports:
  - protocol: TCP
    name: http
    port: 30080
    targetPort: 80
  type: ClusterIP

2. open Dashboard - Service list
3. check Internal endpoints column of the service above

my-service1:30080 TCP
my-service1:0 TCP

How to fix it

Add a ng-if directive for Internal endpoints fields

[jqlu]

/assign @bryk

[codecov]

Codecov Report

Merging #2858 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2858   +/-   ##
=======================================
  Coverage   54.17%   54.17%           
=======================================
  Files         564      564           
  Lines       12199    12199           
=======================================
  Hits         6609     6609           
  Misses       5334     5334           
  Partials      256      256

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c0274d8...a0ee15f. Read the comment docs.

[jqlu]

any update? @bryk

[denverdino]

@bryk Any update?

[bryk]

/lgtm /approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bryk, jqlu

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [bryk]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[salwell]

How to show nodePort in dashboad?