Consider improving the fork repository prompt from within the workspace

[gtsiolis]

Problem to solve

Currently, when you try to push code changes to a repository with no permissions we surface a notification that prompts the user to fork the repository, which can be missed when other notifications pop up during the same time as there's a limit of how many notifications stay visible. This is also an issue as notifications become more frequent with every new workspace and attention to the notification area become staurated.

See also relevant discussion (internal).

Proposal

Improve the fork prompt from within the workspace.

For example, here's how GHCS (GitHub Codespaces) is handling this prompt:

Gitpod	GHCS

[stale]

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