ui : scroll long inline content inside markdown blocks
Long unbreakable content (inline code, paths, hashes) widened the message row and spilled over the neighbour elements. Give each markdown block a horizontal scroll container, and the content root one as well, since the trailing block renders with display: contents and has no box of its own.
Assisted-by: pi:deepseek-ai/DeepSeek-V4.1-Flash
