Bring back browsers information in hover cards

See: https://github.com/microsoft/vscode-css-languageservice/issues/427#issuecomment-2826498778

Not every team uses Baseline as their target and the previous implementation was agnostic of the specific targets in use for a given project.

While some developers might not immediately know from browser versions if something is sufficiently adopted for their case, others do know and do use it like that.

By only showing the baseline status a lot of information is hidden at first and only those teams using Baseline actually benefit from the recent change.

Can we maybe keep the current list of browser versions while also adding some Baseline related information?

@aeschli said:

@romainmenke Thanks for the feedback. I'm ok in bringing the browser section back, maybe below the baseline information.
I think its interesting for newly added properties.

Start by reading the linked vscode-css-languageservice issue comment and locating the hover-card implementation that currently presents Baseline information. Confirm how browser support data is assembled, then restore the browser-version section alongside Baseline information, including for newly added properties.