Commit Briefs
add a navigation bar
This adds a simple navigation bar since web browser are apparently dumbler than most Gemini browsers. The "Root" link points to the capsule' root, "Home" to the current home directory and "Up" to the parent directory. Users home are discovered using a simple heuristics: ~user path components.
fix pre on netsurf
netsurf' css lib doesn't seem to support `initial', so provide a fallback for it.