Sharing links - publish branch & copy link

[lszomoru]

Testing #186199

When one tries to copy a link on a branch that has not been published we display a dialog asking the user whether they want to publish the branch. Based on my tests, the branch is getting published and the linked is being copied to the clipboard. I think that it makes sense to be explicit about what happens and change the label of the button to "Publish Branch & Copy Link".

I also noticed that when trying to create a link for uncommited changes, the dialog contains an action to "Copy Anyways". I think actions should be consistent so we should add that action to this dialog as well.