Fix the index out of bound panic when a request is made to the local
fileserver mux with a valid secret-token, but missing share name.
Example error:
http: panic serving 127.0.0.1:40974: runtime error: slice bounds out of range [2:1]
Additionally, we document the edge case behavior of utilities that
this fileserver mux depends on.
Signed-off-by: Craig Hesling <craig@hesling.com>
This change updates the tailfs file and package names to their new
naming convention.
Updates #tailscale/corp#16827
Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>