Co-authored-by: Christian Duerr <contact@christianduerr.com>

This fixes an issue with hints where it was possible that the terminal
content of highlighted hints changed between the highlighted hint update
and the activation of the hint.

This patch always validates the hint's text content against the hint
itself to ensure that the content is still valid for the original hint
which triggered the highlight.

Closes #8277.

This fixes an issue where the `Select` action for hyperlink escape text
would select the entire line, instead of selecting only the hyperlink
itself.

It also changes the way hyperlinks with the same ID are highlighted,
removing the restriction of being on consecutive lines and instead
highlighting all visible cells that correspond to the matching
hyperlink.

Closes #7766.