Replaced one unclickable TaskView JList with 4 separate working ones

src/main/java/cz/muni/fi/pv168/project/data/task/TaskStatus.java

 package cz.muni.fi.pv168.project.data.task;
 
-import java.util.Locale;
+import cz.muni.fi.pv168.project.utils.Utilities;
 
 public enum TaskStatus {
     PLANNED,
     IN_PROGRESS,
     FINISHED;
 
-    /**
-     * Formats the UPPER_SNAKE_CASE enum value into a humanly readable String.
-     * @return capitalized String with spaces instead of underscores
-     */
     @Override
     public String toString() {
-        String value = this.name().replace("_", " ");
-        return value.charAt(0) + value.substring(1).toLowerCase(Locale.ROOT);
+        return Utilities.enumValueToString(this.name());
     }
 }