feat(umbriel): add smart window movement and update layout keybindings

dot_config/umbriel/binds.toml

@@ -84,8 +84,10 @@
 # ------------------------------------------------------------------------------
 # Move
 
-"Mod+Shift+H" = "column-move-left"
-"Mod+Shift+L" = "column-move-right"
+# niri's consume-or-expel, then on to the next output at the strip's end
+# (umbriel-smart-move).
+"Mod+Shift+H" = "spawn:~/.local/bin/umbriel-smart-move left"
+"Mod+Shift+L" = "spawn:~/.local/bin/umbriel-smart-move right"
 "Super+Ctrl+Shift+H" = "column-move-to-first"
 "Super+Ctrl+Shift+L" = "column-move-to-last"
 "Mod+Shift+J" = "column-move-to-workspace-next"
@@ -110,10 +112,11 @@
 "Mod+Ctrl+F" = { action = "window-toggle-fullscreen", repeat = false }
 "Mod+C" = "column-center"
 "Mod+Ctrl+O" = { action = "window-toggle-floating", repeat = false }
-# Super+W flips the active workspace between scrolling and master (Hyprland's
-# omarchy-toggle-layout); tabbing a column moves to Super+Shift+W.
-"Mod+W" = { action = "workspace-set-layout:toggle:scrolling,master", repeat = false }
-"Mod+Shift+W" = { action = "column-toggle-tabbed", repeat = false }
+# Super+W flips the active workspace between scrolling and dwindle (Hyprland's
+# omarchy-toggle-layout). Super+G tabs the focused window with the windows
+# stacked beside it, or stacks a tab group again (Hyprland's group key).
+"Mod+W" = { action = "workspace-set-layout:toggle:scrolling,dwindle", repeat = false }
+"Mod+G" = { action = "column-toggle-tabbed", repeat = false }
 "Mod+Q" = { action = "window-close", repeat = false }
 
 # ------------------------------------------------------------------------------