fix(conversations): Show when a conversation happened on detail page#112910

obostjancic wants to merge 7 commits intomastergetsentry/sentry:masterfrom

ognjenbostjancic/tet-2210-its-hard-to-see-when-the-conversation-happened-when-youre-ongetsentry/sentry:ognjenbostjancic/tet-2210-its-hard-to-see-when-the-conversation-happened-when-youre-onCopy head branch name to clipboard