Some work on Scripts

notable changes:
- rename `bt-connect` to `bt_connect`
- rename `music` to `media` and make it generic instead of checking
  Spotify
- make separate script to set background to a preset black image
- make all shebangs "#!/usr/bin/env sh"

Scripts/.local/scripts/status/bluetooth-status

@@ -1,7 +1,7 @@
 #!/usr/bin/env sh
 
-name=$(bluetoothctl info | grep "Name" | sed 's/.*Name: //')
-battery=$(bluetoothctl info | grep "Battery" | sed 's/.*(//;s/)//')
+name=$(bluetoothctl info | grep "Alias" | sed 's/.*Alias: //')
+battery=$(bluetoothctl info | grep "Battery Percentage" | sed 's/.*(//;s/)//')
 if [ ! "$name" ]
 then
     echo ""