"Ignore" option for port on notification and in port management views

[loujaybee]

Current notifications do not include an option to "ignore" the port (and persist to gitpod.yml) but this could be one of the more / most appropriate actions that a user wants to take. Currently the primary action is to make public. Would be good to review how we can add ignore behaviour into the initial notification (figure 1), and also into the various IDE port management views (figure 2). Similar to how we have "add to .gitpod.yml" in the extensions view (figure 3).

Figure 1	Figure 2	Figure 3

[akosyakov]

👍 for add to .gitpod.yml with current state

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.