Closes [ #13694 ]

When using App in any namespace, appNamespace is not forwarded to getLinks endpoint. Therefore the control plane namespace is used and apps does not exist in this namespace

To reproduce:

make start-e2e-local

Create following manifest and sync:

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: test-namespaced-links
  namespace: argocd-e2e-external
spec:
  destination:
    namespace: guestbook
    server: https://kubernetes.default.svc
  project: default
  source:
    path: guestbook
    repoURL: https://github.com/speedfl/argocd-example-apps.git
    targetRevision: feature/test-edit-app-in-any-namespace 

Look at the new created link http://titi.toto.com

Note on DCO:

If the DCO action in the integration test fails, one or more of your commits are not signed off. Please click on the Details link next to the DCO action for instructions on how to resolve this.

Checklist:

• X ] Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Toolchain Guide
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• Optional. My organization is added to USERS.md.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).
• My new feature complies with the feature status guidelines.
• I have added a brief description of why this PR is necessary and/or what this PR solves.

Please see Contribution FAQs if you have questions about your pull-request.