History drawer high contrast

[mcoker]

https://www.figma.com/design/iT76DS020Ry1Wswfc0Hmes/branch/wKcOq7IrzfL1gEK2mocd6r/High-Contrast-Exploration?m=auto&node-id=12218-103662&t=jKsaTsEZEFafqifW-1

[rebeccaalpert]

We appear to be picking up the border on the right for free at https://staging.patternfly.org/patternfly-ai/chatbot/ui/#drawer-with-search-and-new-chat-button. I think we just want to adjust the menu/menu items. Let me know if you want other changes here through @lboehling!

[rebeccaalpert]

Closed after talking to Lucia - inheriting style.