fix: create reusable default profile pictures (#406)

Co-authored-by: Elias Schneider <login@eliasschneider.com>

backend/internal/job/job.go

@@ -0,0 +1,27 @@
+package job
+
+import (
+	"log"
+
+	"github.com/go-co-op/gocron/v2"
+	"github.com/google/uuid"
+)
+
+func registerJob(scheduler gocron.Scheduler, name string, interval string, job func() error) {
+	_, err := scheduler.NewJob(
+		gocron.CronJob(interval, false),
+		gocron.NewTask(job),
+		gocron.WithEventListeners(
+			gocron.AfterJobRuns(func(jobID uuid.UUID, jobName string) {
+				log.Printf("Job %q run successfully", name)
+			}),
+			gocron.AfterJobRunsWithError(func(jobID uuid.UUID, jobName string, err error) {
+				log.Printf("Job %q failed with error: %v", name, err)
+			}),
+		),
+	)
+
+	if err != nil {
+		log.Fatalf("Failed to register job %q: %v", name, err)
+	}
+}