add waybar-restart script and Mod+Shift+B keybind

scripts/waybar-restart.sh: kills waybar, waits for it to exit, then
relaunches detached via setsid. Symlinked into ~/.local/bin and bound
to Mod+Shift+B in niri.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

install.sh

@@ -59,6 +59,7 @@ ln -sf "$(pwd)/scripts/clipboard.sh" ~/.local/bin/clipboard-picker
 ln -sf "$(pwd)/scripts/power-profile.sh" ~/.local/bin/power-profile
 ln -sf "$(pwd)/scripts/fan-profile.sh" ~/.local/bin/fan-profile
 ln -sf "$(pwd)/scripts/screenshot.sh" ~/.local/bin/screenshot
+ln -sf "$(pwd)/scripts/waybar-restart.sh" ~/.local/bin/waybar-restart
 
 echo "==> Enabling systemd user services"
 mkdir -p ~/.config/systemd/user

niri/config.kdl

@@ -52,6 +52,7 @@ binds {
     Mod+Return { spawn "alacritty"; }
     Mod+D { spawn "wofi" "--show" "drun"; }
     Mod+E { spawn "thunar"; }
+    Mod+Shift+B { spawn "waybar-restart"; }
 
     Mod+H { focus-column-left; }
     Mod+L { focus-column-right; }

scripts/waybar-restart.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+pkill -x waybar
+while pgrep -x waybar >/dev/null; do sleep 0.05; done
+setsid -f waybar </dev/null >/dev/null 2>&1