Hide the "Tor" section in preferences when TOR_SKIP_LAUNCH=1 is set

In Tor Browser 9.0, there is now a "Tor" section in the preferences. When setting the TOR_SKIP_LAUNCH=1 variable to disable Tor (e.g. if in a transparent proxy environment) then the section is still visible on the left but clicking on it does nothing. It should be hidden when this variable is set to prevent confusion.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information