Allow users to define app specific urls to expose in the UI

[dthomson25]

Is your feature request related to a problem? Please describe.
Users should be able to define a list of useful URLs for their specific application and expose those links on the UI. These links should provide helpful shortcuts that make easier to integrate Argo CD into existing systems by making it easier to find other components inside and outside Argo CD. As an example, they could reference a CI pipeline or an application specific management tool.

Describe the solution you'd like
We can introduce a new struct to the Application CRD called info which has a name and value field. When the user clicks the application bubble in the UI, these name values pair are displayed in a new block below the Sync Policy block.

Have you thought about contributing yourself?
This would be a great first-time issue!