Adding the spinner for foreign_key_check too

Signed-off-by: RD WebDesign <github@rdwebdesign.com.br>

advanced/Scripts/piholeDebug.sh

@@ -1316,7 +1316,7 @@ database_integrity_check(){
 
       log_write "${INFO} Checking foreign key constraints of ${database} ... (this can take several minutes)"
       unset result
-      result="$(pihole-FTL sqlite3 "${database}" -cmd ".headers on" -cmd ".mode column" "PRAGMA foreign_key_check" 2>&1)"
+      result="$(pihole-FTL sqlite3 "${database}" -cmd ".headers on" -cmd ".mode column" "PRAGMA foreign_key_check" 2>&1 & spinner)"
       if [[ -z ${result} ]]; then
         log_write "${TICK} No foreign key errors in ${database}"
       else