Show workspace ports in VS Code Panel
MR: Pending
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## Description
As a user or stakeholder, I want a list of ports that are running in my workspace so that I can easily click on it to copy/open the URL.

Furthermore, opening ports in a Workspace and removing the Authentication layer(as described in https://gitlab.com/gitlab-org/gitlab/-/issues/471058+) entails security risks. It would be great if we could open and close these ports from the Workspaces UI in VSCode using the "Forwarding ports" panel:
## Acceptance Criteria
- [ ] The ports tab will display the following:
* [ ] A list of all available ports
* [ ] The URL for each corresponding port on the list
* [ ] ~~The visibility of the ports listed~~ --\> see [discussion here](https://gitlab.com/gitlab-org/gitlab/-/issues/509815#note_2273083804) for removal of this AC
## Technical Requirements
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## Design Requirements
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## Impact Assessment
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## User Story
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