refactor(waybar): refactor check updates scripts

.config/waybar/scripts/check-updates.sh

@@ -1,14 +1,18 @@
 #!/usr/bin/env bash
 
 main() {
+  data=""
   updates=$(checkupdates --nocolor 2>/dev/null)
+
   if [[ $? -ne 0 || -z "$updates" ]]; then
-    echo '{"text": "", "tooltip": ""}' | jq --unbuffered --compact-output
+    data='{"text": "", "tooltip": ""}'
   else
     numberOfUpdates=$(echo "$updates" | wc -l)
     tooltip=$(echo "$updates" | sed 's/\n/\r/g' | jq -sR .)
-    echo "{\"text\": \"$numberOfUpdates\", \"tooltip\": $tooltip}" | jq --unbuffered --compact-output
+    data="{\"text\": \"$numberOfUpdates\", \"tooltip\": $tooltip}" 
   fi
+
+  echo $data | jq --unbuffered --compact-output
 }
 
-main "$@"
+main "$@"