[PATCH] controls: Fix link activation for text of InlineMessage

[PATCH] controls: Fix link activation for text of InlineMessage

Rather than stretching both the label and toolbar across the entire
inline message, use implicit width for both, unless either would become
larger than the InlineMessage width. Most importantly, since the toolbar
only takes space that is not used by the text, this avoids links in the
text not working correctly.

BUG: 500578

Gbp-Pq: Name upstream_82abc769_controls-Fix-link-activation-for-text-of-InlineMessage.patch