fix typo habor -> harbor (#4121)

Author: fetsorn

CHANGES.md

@@ -893,7 +893,7 @@ New:
   harbor (#1495).
 - Added `interactive.persistent` (as well as `interactive.save` and
   `interactive.load`) to make interactive variables persistent (#1495).
-- Added `server.habor` (#1502).
+- Added `server.harbor` (#1502).
 - Added `metronome`.
 - Added `playlist.files`.
 - Added `getter.is_constant`.

src/libs/extra/interactive.liq

@@ -442,7 +442,7 @@ def interactive.persistent(fname) =
   interactive.persistency := {interactive.save(fname)}
 end
 
-# Expose interactive variables through habor http server. Once this is called,
+# Expose interactive variables through harbor http server. Once this is called,
 # with default parameters, you can browse <http://localhost:8000/interactive> to
 # change the value of interactive variables using sliders.
 # @category Interaction