[Fix] Increment CSV row count by 1 (#11965)

* actually increment row by 1

* fix binary operation error

(cherry picked from commit 3886382)

api/app/Generators/PoolCandidateCsvGenerator.php

@@ -212,7 +212,7 @@ public function generate(): self
                 }
 
                 // 1 is added to the key to account for the header row
-                $sheet->fromArray($values, null, 'A'.$currentCandidate);
+                $sheet->fromArray($values, null, sprintf('A%d', $currentCandidate + 1));
                 $currentCandidate++;
             }
         });

api/app/Generators/UserCsvGenerator.php

@@ -121,7 +121,7 @@ public function generate(): self
                 ];
 
                 // 1 is added to the key to account for the header row
-                $sheet->fromArray($values, null, 'A'.$currentUser);
+                $sheet->fromArray($values, null, sprintf('A%d', $currentUser + 1));
                 $currentUser++;
             }
         });