Enable arrow key navigation by default

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

src/keys.c

@@ -81,10 +81,10 @@ static struct keydef_s keydef[NBKEYS] = {
   {"generic-scroll-up", "C-p"},
   {"generic-goto-today", "C-g"},
 
-  {"move-right", "l L"},
-  {"move-left", "h H"},
-  {"move-down", "j J"},
-  {"move-up", "k K"},
+  {"move-right", "l L RGT"},
+  {"move-left", "h H LFT"},
+  {"move-down", "j J DWN"},
+  {"move-up", "k K UP"},
   {"start-of-week", "0"},
   {"end-of-week", "$"},
   {"add-item", "a A"},