Rename refresh-bar -> refresh-shell, restart-quickshell -> restart-shell

The bin names should reflect the thing they manage. `refresh bar` is
misleading because the command resets the entire shell.json (which holds
plugins beyond just the bar), and `restart quickshell` names the runtime
rather than the product. Both now end in `-shell` to match the rest of
omarchy-shell.

Updates every caller in autostart, the menu, voxtype helpers, and the
shell README. No behavior changes.

bin/omarchy-refresh-shell

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # omarchy:summary=Reset shell.json to Omarchy defaults
-# omarchy:examples=omarchy refresh bar
+# omarchy:examples=omarchy refresh shell
 
 set -e
 

bin/omarchy-restart-shell

@@ -1,7 +1,7 @@
 #!/bin/bash
 
-# omarchy:summary=Restart Omarchy Quickshell
-# omarchy:examples=omarchy restart quickshell | omarchy-restart-quickshell
+# omarchy:summary=Restart the Omarchy shell
+# omarchy:examples=omarchy restart shell
 
 OMARCHY_PATH=${OMARCHY_PATH:-$HOME/.local/share/omarchy}
 CONFIG_DIR="$OMARCHY_PATH/default/quickshell/omarchy-shell"

bin/omarchy-voxtype-install

@@ -20,6 +20,6 @@ if gum confirm "Install Voxtype + AI model (~150MB) to enable dictation?"; then
   fi
   voxtype setup systemd
 
-  omarchy-restart-quickshell
+  omarchy-restart-shell
   notify-send -a omarchy-action "    Voxtype Dictation Ready" "Hold F9 to dictate (or toggle with Super + Ctrl + X)." -t 10000
 fi

bin/omarchy-voxtype-model

@@ -5,4 +5,4 @@
 set -e
 
 omarchy-launch-floating-terminal-with-presentation "voxtype setup model"
-omarchy-restart-quickshell
+omarchy-restart-shell