feat(config): enable pane labels, terminal toasts, tweak kitty and niri settings

dot_config/herdr/config.toml

@@ -1,7 +1,7 @@
 onboarding = false
 [ui]
 
-show_agent_labels_on_pane_borders = false
+show_agent_labels_on_pane_borders = true
 agent_panel_sort = "priority"
 [keys]
 # tmux-style bindings (prefix is the leader, default ctrl+b)
@@ -71,4 +71,4 @@ command = "vim-herdr-navigation.right"
 description = "navigate right (vim/herdr)"
 
 [ui.toast]
-delivery = "system"
+delivery = "terminal"