Promote shell to its own top-level directory

shell/scripts/indicators/screen-recording.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if pgrep -f "^gpu-screen-recorder" >/dev/null; then
+  echo '{"text": "󰻂", "tooltip": "Stop recording", "class": "active"}'
+else
+  echo '{"text": ""}'
+fi