Use label for "Follow link" command's tooltip

[dsanders11]

Currently hovering over the "Follow link" command will show the URI for the command in text form. This PR changes it to showing the label as the tooltip.

Avoids this:

[gjsjohnmurray]

Doesn't this change also mean I won't be able to preview the target of an http(s) link?

Maybe OK to omit the query string from what the hover currently shows.

Also, based on code reading I expected the link text in your screenshot to read "Execute command" rather than "Follow link".

[dsanders11]

Doesn't this change also mean I won't be able to preview the target of an http(s) link?

True. Is that an intended use-case, or simply a side-effect of the current behavior? The PR could be adjusted so that it only uses the label if executeCmd is true.

Maybe OK to omit the query string from what the hover currently shows.

That would be an improvement, but I think showing the command name would still be undesirable behavior, as it's unexpected and not self-explanatory to anyone who doesn't know what command URIs are, as they're an implementation detail.

Also, based on code reading I expected the link text in your screenshot to read "Execute command" rather than "Follow link".

I believe that's because it's a Markdown document, and the markdown-language-features extension sets the tooltip to "Follow link", so that's what's displayed.

[gjsjohnmurray]

🤷 Let's see what a team member says when this PR gets looked at.

[alexdima]

I agree that the markdown tooltip is too much. Other test cases (http and file links):

<!--
    http://www.example.com
-->
<script src="script.js"></script>

[alexdima]

Thank you!