Fix long opts for nockma encode from/to (#3177)

The `from` and `to` long options for `juvix dev nockma encode` were
mislabelled. `from` should be the source encoding and `to` should be the
target encoding.

app/Commands/Dev/Nockma/Encode/Options.hs

@@ -49,7 +49,7 @@ parseNockmaEncodeOptions = do
   _nockmaEncodeFrom <-
     option
       (enumReader Proxy)
-      ( long "to"
+      ( long "from"
           <> metavar "ENCODING"
           <> completer (enumCompleter @EncodeType Proxy)
           <> helpDoc
@@ -61,7 +61,7 @@ parseNockmaEncodeOptions = do
   _nockmaEncodeTo <-
     option
       (enumReader Proxy)
-      ( long "from"
+      ( long "to"
           <> metavar "ENCODING"
           <> completer (enumCompleter @EncodeType Proxy)
           <> helpDoc