add niri and update nvim config

.config/hypr/hyprbindings.conf

@@ -161,7 +161,7 @@ bind = , G, moveoutofgroup,
 bind = $mainMod, t, togglegroup
 #
 # lock window group
-bind = , l, lockactivegroup, toggle
+bind = SHIFT_L, l, lockactivegroup, toggle
 
 # use reset to go backc to the global submap
 bind = , escape, submap, reset