Promote shell to its own top-level directory

shell/scripts/weather.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+icon=$(omarchy-weather-icon 2>/dev/null)
+
+if [[ -n $icon ]]; then
+  icon=$(printf '%s' "$icon" | sed 's/["\\]/\\&/g')
+  printf '{"text":"%s"}\n' "$icon"
+else
+  printf '{"text":"","class":"unavailable"}\n'
+fi