Time display, knowledge reset, and window sizing
Article and chat times now respect the visitor timezone, knowledge detail closes back to the home view, and About is more compact.
# Time display, knowledge reset, and window sizing
This update polishes a few everyday browsing details.
## Changes
- Knowledge-base publish times now render in the visitor timezone, down to seconds, with the timezone label.
- Anonymous chat message times also use the visitor timezone; today shows time only, older messages show date, time, and timezone.
- Closing the knowledge base from an article detail resets it to the knowledge home view for the next open.
- The About page is now a compact window, while other regular sections share a slightly larger content window; chat keeps its own size.
- The three pending home entries now use TBD wording, with wider desktop icon labels so text can fit more naturally.
